sctp_usrreq.c

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    1 /*-
    2  * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved.
    3  * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
    4  * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
    5  *
    6  * Redistribution and use in source and binary forms, with or without
    7  * modification, are permitted provided that the following conditions are met:
    8  *
    9  * a) Redistributions of source code must retain the above copyright notice,
   10  *    this list of conditions and the following disclaimer.
   11  *
   12  * b) Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in
   14  *    the documentation and/or other materials provided with the distribution.
   15  *
   16  * c) Neither the name of Cisco Systems, Inc. nor the names of its
   17  *    contributors may be used to endorse or promote products derived
   18  *    from this software without specific prior written permission.
   19  *
   20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
   22  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   23  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
   24  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
   30  * THE POSSIBILITY OF SUCH DAMAGE.
   31  */
   32 
   33 #include <sys/cdefs.h>
   34 __FBSDID("$FreeBSD: releng/10.0/sys/netinet/sctp_usrreq.c 277808 2015-01-27 19:37:02Z delphij $");
   35 
   36 #include <netinet/sctp_os.h>
   37 #include <sys/proc.h>
   38 #include <netinet/sctp_pcb.h>
   39 #include <netinet/sctp_header.h>
   40 #include <netinet/sctp_var.h>
   41 #ifdef INET6
   42 #endif
   43 #include <netinet/sctp_sysctl.h>
   44 #include <netinet/sctp_output.h>
   45 #include <netinet/sctp_uio.h>
   46 #include <netinet/sctp_asconf.h>
   47 #include <netinet/sctputil.h>
   48 #include <netinet/sctp_indata.h>
   49 #include <netinet/sctp_timer.h>
   50 #include <netinet/sctp_auth.h>
   51 #include <netinet/sctp_bsd_addr.h>
   52 #include <netinet/udp.h>
   53 
   54 
   55 
   56 extern struct sctp_cc_functions sctp_cc_functions[];
   57 extern struct sctp_ss_functions sctp_ss_functions[];
   58 
   59 void
   60 sctp_init(void)
   61 {
   62         u_long sb_max_adj;
   63 
   64         /* Initialize and modify the sysctled variables */
   65         sctp_init_sysctls();
   66         if ((nmbclusters / 8) > SCTP_ASOC_MAX_CHUNKS_ON_QUEUE)
   67                 SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue) = (nmbclusters / 8);
   68         /*
   69          * Allow a user to take no more than 1/2 the number of clusters or
   70          * the SB_MAX whichever is smaller for the send window.
   71          */
   72         sb_max_adj = (u_long)((u_quad_t) (SB_MAX) * MCLBYTES / (MSIZE + MCLBYTES));
   73         SCTP_BASE_SYSCTL(sctp_sendspace) = min(sb_max_adj,
   74             (((uint32_t) nmbclusters / 2) * SCTP_DEFAULT_MAXSEGMENT));
   75         /*
   76          * Now for the recv window, should we take the same amount? or
   77          * should I do 1/2 the SB_MAX instead in the SB_MAX min above. For
   78          * now I will just copy.
   79          */
   80         SCTP_BASE_SYSCTL(sctp_recvspace) = SCTP_BASE_SYSCTL(sctp_sendspace);
   81         SCTP_BASE_VAR(first_time) = 0;
   82         SCTP_BASE_VAR(sctp_pcb_initialized) = 0;
   83         sctp_pcb_init();
   84 #if defined(SCTP_PACKET_LOGGING)
   85         SCTP_BASE_VAR(packet_log_writers) = 0;
   86         SCTP_BASE_VAR(packet_log_end) = 0;
   87         bzero(&SCTP_BASE_VAR(packet_log_buffer), SCTP_PACKET_LOG_SIZE);
   88 #endif
   89 }
   90 
   91 void
   92 sctp_finish(void)
   93 {
   94         sctp_pcb_finish();
   95 }
   96 
   97 
   98 
   99 void
  100 sctp_pathmtu_adjustment(struct sctp_tcb *stcb, uint16_t nxtsz)
  101 {
  102         struct sctp_tmit_chunk *chk;
  103         uint16_t overhead;
  104 
  105         /* Adjust that too */
  106         stcb->asoc.smallest_mtu = nxtsz;
  107         /* now off to subtract IP_DF flag if needed */
  108         overhead = IP_HDR_SIZE;
  109         if (sctp_auth_is_required_chunk(SCTP_DATA, stcb->asoc.peer_auth_chunks)) {
  110                 overhead += sctp_get_auth_chunk_len(stcb->asoc.peer_hmac_id);
  111         }
  112         TAILQ_FOREACH(chk, &stcb->asoc.send_queue, sctp_next) {
  113                 if ((chk->send_size + overhead) > nxtsz) {
  114                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
  115                 }
  116         }
  117         TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) {
  118                 if ((chk->send_size + overhead) > nxtsz) {
  119                         /*
  120                          * For this guy we also mark for immediate resend
  121                          * since we sent to big of chunk
  122                          */
  123                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
  124                         if (chk->sent < SCTP_DATAGRAM_RESEND) {
  125                                 sctp_flight_size_decrease(chk);
  126                                 sctp_total_flight_decrease(stcb, chk);
  127                         }
  128                         if (chk->sent != SCTP_DATAGRAM_RESEND) {
  129                                 sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt);
  130                         }
  131                         chk->sent = SCTP_DATAGRAM_RESEND;
  132                         chk->rec.data.doing_fast_retransmit = 0;
  133                         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_FLIGHT_LOGGING_ENABLE) {
  134                                 sctp_misc_ints(SCTP_FLIGHT_LOG_DOWN_PMTU,
  135                                     chk->whoTo->flight_size,
  136                                     chk->book_size,
  137                                     (uintptr_t) chk->whoTo,
  138                                     chk->rec.data.TSN_seq);
  139                         }
  140                         /* Clear any time so NO RTT is being done */
  141                         chk->do_rtt = 0;
  142                 }
  143         }
  144 }
  145 
  146 #ifdef INET
  147 static void
  148 sctp_notify_mbuf(struct sctp_inpcb *inp,
  149     struct sctp_tcb *stcb,
  150     struct sctp_nets *net,
  151     struct ip *ip,
  152     struct sctphdr *sh)
  153 {
  154         struct icmp *icmph;
  155         int totsz, tmr_stopped = 0;
  156         uint16_t nxtsz;
  157 
  158         /* protection */
  159         if ((inp == NULL) || (stcb == NULL) || (net == NULL) ||
  160             (ip == NULL) || (sh == NULL)) {
  161                 if (stcb != NULL) {
  162                         SCTP_TCB_UNLOCK(stcb);
  163                 }
  164                 return;
  165         }
  166         /* First job is to verify the vtag matches what I would send */
  167         if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) {
  168                 SCTP_TCB_UNLOCK(stcb);
  169                 return;
  170         }
  171         icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) -
  172             sizeof(struct ip)));
  173         if (icmph->icmp_type != ICMP_UNREACH) {
  174                 /* We only care about unreachable */
  175                 SCTP_TCB_UNLOCK(stcb);
  176                 return;
  177         }
  178         if (icmph->icmp_code != ICMP_UNREACH_NEEDFRAG) {
  179                 /* not a unreachable message due to frag. */
  180                 SCTP_TCB_UNLOCK(stcb);
  181                 return;
  182         }
  183         totsz = ntohs(ip->ip_len);
  184 
  185         nxtsz = ntohs(icmph->icmp_nextmtu);
  186         if (nxtsz == 0) {
  187                 /*
  188                  * old type router that does not tell us what the next size
  189                  * mtu is. Rats we will have to guess (in a educated fashion
  190                  * of course)
  191                  */
  192                 nxtsz = sctp_get_prev_mtu(totsz);
  193         }
  194         /* Stop any PMTU timer */
  195         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
  196                 tmr_stopped = 1;
  197                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
  198                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_1);
  199         }
  200         /* Adjust destination size limit */
  201         if (net->mtu > nxtsz) {
  202                 net->mtu = nxtsz;
  203                 if (net->port) {
  204                         net->mtu -= sizeof(struct udphdr);
  205                 }
  206         }
  207         /* now what about the ep? */
  208         if (stcb->asoc.smallest_mtu > nxtsz) {
  209                 sctp_pathmtu_adjustment(stcb, nxtsz);
  210         }
  211         if (tmr_stopped)
  212                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
  213 
  214         SCTP_TCB_UNLOCK(stcb);
  215 }
  216 
  217 #endif
  218 
  219 void
  220 sctp_notify(struct sctp_inpcb *inp,
  221     struct ip *ip,
  222     struct sctphdr *sh,
  223     struct sockaddr *to,
  224     struct sctp_tcb *stcb,
  225     struct sctp_nets *net)
  226 {
  227 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
  228         struct socket *so;
  229 
  230 #endif
  231         struct icmp *icmph;
  232 
  233         /* protection */
  234         if ((inp == NULL) || (stcb == NULL) || (net == NULL) ||
  235             (sh == NULL) || (to == NULL)) {
  236                 if (stcb)
  237                         SCTP_TCB_UNLOCK(stcb);
  238                 return;
  239         }
  240         /* First job is to verify the vtag matches what I would send */
  241         if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) {
  242                 SCTP_TCB_UNLOCK(stcb);
  243                 return;
  244         }
  245         icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) -
  246             sizeof(struct ip)));
  247         if (icmph->icmp_type != ICMP_UNREACH) {
  248                 /* We only care about unreachable */
  249                 SCTP_TCB_UNLOCK(stcb);
  250                 return;
  251         }
  252         if ((icmph->icmp_code == ICMP_UNREACH_NET) ||
  253             (icmph->icmp_code == ICMP_UNREACH_HOST) ||
  254             (icmph->icmp_code == ICMP_UNREACH_NET_UNKNOWN) ||
  255             (icmph->icmp_code == ICMP_UNREACH_HOST_UNKNOWN) ||
  256             (icmph->icmp_code == ICMP_UNREACH_ISOLATED) ||
  257             (icmph->icmp_code == ICMP_UNREACH_NET_PROHIB) ||
  258             (icmph->icmp_code == ICMP_UNREACH_HOST_PROHIB) ||
  259             (icmph->icmp_code == ICMP_UNREACH_FILTER_PROHIB)) {
  260 
  261                 /*
  262                  * Hmm reachablity problems we must examine closely. If its
  263                  * not reachable, we may have lost a network. Or if there is
  264                  * NO protocol at the other end named SCTP. well we consider
  265                  * it a OOTB abort.
  266                  */
  267                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
  268                         /* Ok that destination is NOT reachable */
  269                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
  270                         net->dest_state &= ~SCTP_ADDR_PF;
  271                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN,
  272                             stcb, 0,
  273                             (void *)net, SCTP_SO_NOT_LOCKED);
  274                 }
  275                 SCTP_TCB_UNLOCK(stcb);
  276         } else if ((icmph->icmp_code == ICMP_UNREACH_PROTOCOL) ||
  277             (icmph->icmp_code == ICMP_UNREACH_PORT)) {
  278                 /*
  279                  * Here the peer is either playing tricks on us, including
  280                  * an address that belongs to someone who does not support
  281                  * SCTP OR was a userland implementation that shutdown and
  282                  * now is dead. In either case treat it like a OOTB abort
  283                  * with no TCB
  284                  */
  285                 sctp_abort_notification(stcb, 1, 0, NULL, SCTP_SO_NOT_LOCKED);
  286 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
  287                 so = SCTP_INP_SO(inp);
  288                 atomic_add_int(&stcb->asoc.refcnt, 1);
  289                 SCTP_TCB_UNLOCK(stcb);
  290                 SCTP_SOCKET_LOCK(so, 1);
  291                 SCTP_TCB_LOCK(stcb);
  292                 atomic_subtract_int(&stcb->asoc.refcnt, 1);
  293 #endif
  294                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_2);
  295 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
  296                 SCTP_SOCKET_UNLOCK(so, 1);
  297                 /* SCTP_TCB_UNLOCK(stcb); MT: I think this is not needed. */
  298 #endif
  299                 /* no need to unlock here, since the TCB is gone */
  300         } else {
  301                 SCTP_TCB_UNLOCK(stcb);
  302         }
  303 }
  304 
  305 #ifdef INET
  306 void
  307 sctp_ctlinput(cmd, sa, vip)
  308         int cmd;
  309         struct sockaddr *sa;
  310         void *vip;
  311 {
  312         struct ip *ip = vip;
  313         struct sctphdr *sh;
  314         uint32_t vrf_id;
  315 
  316         /* FIX, for non-bsd is this right? */
  317         vrf_id = SCTP_DEFAULT_VRFID;
  318         if (sa->sa_family != AF_INET ||
  319             ((struct sockaddr_in *)sa)->sin_addr.s_addr == INADDR_ANY) {
  320                 return;
  321         }
  322         if (PRC_IS_REDIRECT(cmd)) {
  323                 ip = 0;
  324         } else if ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0) {
  325                 return;
  326         }
  327         if (ip) {
  328                 struct sctp_inpcb *inp = NULL;
  329                 struct sctp_tcb *stcb = NULL;
  330                 struct sctp_nets *net = NULL;
  331                 struct sockaddr_in to, from;
  332 
  333                 sh = (struct sctphdr *)((caddr_t)ip + (ip->ip_hl << 2));
  334                 bzero(&to, sizeof(to));
  335                 bzero(&from, sizeof(from));
  336                 from.sin_family = to.sin_family = AF_INET;
  337                 from.sin_len = to.sin_len = sizeof(to);
  338                 from.sin_port = sh->src_port;
  339                 from.sin_addr = ip->ip_src;
  340                 to.sin_port = sh->dest_port;
  341                 to.sin_addr = ip->ip_dst;
  342 
  343                 /*
  344                  * 'to' holds the dest of the packet that failed to be sent.
  345                  * 'from' holds our local endpoint address. Thus we reverse
  346                  * the to and the from in the lookup.
  347                  */
  348                 stcb = sctp_findassociation_addr_sa((struct sockaddr *)&to,
  349                     (struct sockaddr *)&from,
  350                     &inp, &net, 1, vrf_id);
  351                 if (stcb != NULL && inp && (inp->sctp_socket != NULL)) {
  352                         if (cmd != PRC_MSGSIZE) {
  353                                 sctp_notify(inp, ip, sh,
  354                                     (struct sockaddr *)&to, stcb,
  355                                     net);
  356                         } else {
  357                                 /* handle possible ICMP size messages */
  358                                 sctp_notify_mbuf(inp, stcb, net, ip, sh);
  359                         }
  360                 } else {
  361                         if ((stcb == NULL) && (inp != NULL)) {
  362                                 /* reduce ref-count */
  363                                 SCTP_INP_WLOCK(inp);
  364                                 SCTP_INP_DECR_REF(inp);
  365                                 SCTP_INP_WUNLOCK(inp);
  366                         }
  367                         if (stcb) {
  368                                 SCTP_TCB_UNLOCK(stcb);
  369                         }
  370                 }
  371         }
  372         return;
  373 }
  374 
  375 #endif
  376 
  377 static int
  378 sctp_getcred(SYSCTL_HANDLER_ARGS)
  379 {
  380         struct xucred xuc;
  381         struct sockaddr_in addrs[2];
  382         struct sctp_inpcb *inp;
  383         struct sctp_nets *net;
  384         struct sctp_tcb *stcb;
  385         int error;
  386         uint32_t vrf_id;
  387 
  388         /* FIX, for non-bsd is this right? */
  389         vrf_id = SCTP_DEFAULT_VRFID;
  390 
  391         error = priv_check(req->td, PRIV_NETINET_GETCRED);
  392 
  393         if (error)
  394                 return (error);
  395 
  396         error = SYSCTL_IN(req, addrs, sizeof(addrs));
  397         if (error)
  398                 return (error);
  399 
  400         stcb = sctp_findassociation_addr_sa(sintosa(&addrs[1]),
  401             sintosa(&addrs[0]),
  402             &inp, &net, 1, vrf_id);
  403         if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) {
  404                 if ((inp != NULL) && (stcb == NULL)) {
  405                         /* reduce ref-count */
  406                         SCTP_INP_WLOCK(inp);
  407                         SCTP_INP_DECR_REF(inp);
  408                         goto cred_can_cont;
  409                 }
  410                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
  411                 error = ENOENT;
  412                 goto out;
  413         }
  414         SCTP_TCB_UNLOCK(stcb);
  415         /*
  416          * We use the write lock here, only since in the error leg we need
  417          * it. If we used RLOCK, then we would have to
  418          * wlock/decr/unlock/rlock. Which in theory could create a hole.
  419          * Better to use higher wlock.
  420          */
  421         SCTP_INP_WLOCK(inp);
  422 cred_can_cont:
  423         error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket);
  424         if (error) {
  425                 SCTP_INP_WUNLOCK(inp);
  426                 goto out;
  427         }
  428         cru2x(inp->sctp_socket->so_cred, &xuc);
  429         SCTP_INP_WUNLOCK(inp);
  430         error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred));
  431 out:
  432         return (error);
  433 }
  434 
  435 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred, CTLTYPE_OPAQUE | CTLFLAG_RW,
  436     0, 0, sctp_getcred, "S,ucred", "Get the ucred of a SCTP connection");
  437 
  438 
  439 #ifdef INET
  440 static void
  441 sctp_abort(struct socket *so)
  442 {
  443         struct sctp_inpcb *inp;
  444         uint32_t flags;
  445 
  446         inp = (struct sctp_inpcb *)so->so_pcb;
  447         if (inp == NULL) {
  448                 return;
  449         }
  450 sctp_must_try_again:
  451         flags = inp->sctp_flags;
  452 #ifdef SCTP_LOG_CLOSING
  453         sctp_log_closing(inp, NULL, 17);
  454 #endif
  455         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
  456             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
  457 #ifdef SCTP_LOG_CLOSING
  458                 sctp_log_closing(inp, NULL, 16);
  459 #endif
  460                 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
  461                     SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
  462                 SOCK_LOCK(so);
  463                 SCTP_SB_CLEAR(so->so_snd);
  464                 /*
  465                  * same for the rcv ones, they are only here for the
  466                  * accounting/select.
  467                  */
  468                 SCTP_SB_CLEAR(so->so_rcv);
  469 
  470                 /* Now null out the reference, we are completely detached. */
  471                 so->so_pcb = NULL;
  472                 SOCK_UNLOCK(so);
  473         } else {
  474                 flags = inp->sctp_flags;
  475                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
  476                         goto sctp_must_try_again;
  477                 }
  478         }
  479         return;
  480 }
  481 
  482 static int
  483 sctp_attach(struct socket *so, int proto SCTP_UNUSED, struct thread *p SCTP_UNUSED)
  484 {
  485         struct sctp_inpcb *inp;
  486         struct inpcb *ip_inp;
  487         int error;
  488         uint32_t vrf_id = SCTP_DEFAULT_VRFID;
  489 
  490 #ifdef IPSEC
  491         uint32_t flags;
  492 
  493 #endif
  494 
  495         inp = (struct sctp_inpcb *)so->so_pcb;
  496         if (inp != 0) {
  497                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
  498                 return (EINVAL);
  499         }
  500         if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
  501                 error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace));
  502                 if (error) {
  503                         return (error);
  504                 }
  505         }
  506         error = sctp_inpcb_alloc(so, vrf_id);
  507         if (error) {
  508                 return (error);
  509         }
  510         inp = (struct sctp_inpcb *)so->so_pcb;
  511         SCTP_INP_WLOCK(inp);
  512         inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6;    /* I'm not v6! */
  513         ip_inp = &inp->ip_inp.inp;
  514         ip_inp->inp_vflag |= INP_IPV4;
  515         ip_inp->inp_ip_ttl = MODULE_GLOBAL(ip_defttl);
  516 #ifdef IPSEC
  517         error = ipsec_init_policy(so, &ip_inp->inp_sp);
  518 #ifdef SCTP_LOG_CLOSING
  519         sctp_log_closing(inp, NULL, 17);
  520 #endif
  521         if (error != 0) {
  522 try_again:
  523                 flags = inp->sctp_flags;
  524                 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
  525                     (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
  526 #ifdef SCTP_LOG_CLOSING
  527                         sctp_log_closing(inp, NULL, 15);
  528 #endif
  529                         SCTP_INP_WUNLOCK(inp);
  530                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
  531                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
  532                 } else {
  533                         flags = inp->sctp_flags;
  534                         if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
  535                                 goto try_again;
  536                         } else {
  537                                 SCTP_INP_WUNLOCK(inp);
  538                         }
  539                 }
  540                 return (error);
  541         }
  542 #endif                          /* IPSEC */
  543         SCTP_INP_WUNLOCK(inp);
  544         return (0);
  545 }
  546 
  547 static int
  548 sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
  549 {
  550         struct sctp_inpcb *inp;
  551 
  552         inp = (struct sctp_inpcb *)so->so_pcb;
  553         if (inp == NULL) {
  554                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
  555                 return (EINVAL);
  556         }
  557         if (addr != NULL) {
  558                 if ((addr->sa_family != AF_INET) ||
  559                     (addr->sa_len != sizeof(struct sockaddr_in))) {
  560                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
  561                         return (EINVAL);
  562                 }
  563         }
  564         return (sctp_inpcb_bind(so, addr, NULL, p));
  565 }
  566 
  567 #endif
  568 void
  569 sctp_close(struct socket *so)
  570 {
  571         struct sctp_inpcb *inp;
  572         uint32_t flags;
  573 
  574         inp = (struct sctp_inpcb *)so->so_pcb;
  575         if (inp == NULL)
  576                 return;
  577 
  578         /*
  579          * Inform all the lower layer assoc that we are done.
  580          */
  581 sctp_must_try_again:
  582         flags = inp->sctp_flags;
  583 #ifdef SCTP_LOG_CLOSING
  584         sctp_log_closing(inp, NULL, 17);
  585 #endif
  586         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
  587             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
  588                 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
  589                     (so->so_rcv.sb_cc > 0)) {
  590 #ifdef SCTP_LOG_CLOSING
  591                         sctp_log_closing(inp, NULL, 13);
  592 #endif
  593                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
  594                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
  595                 } else {
  596 #ifdef SCTP_LOG_CLOSING
  597                         sctp_log_closing(inp, NULL, 14);
  598 #endif
  599                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE,
  600                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
  601                 }
  602                 /*
  603                  * The socket is now detached, no matter what the state of
  604                  * the SCTP association.
  605                  */
  606                 SOCK_LOCK(so);
  607                 SCTP_SB_CLEAR(so->so_snd);
  608                 /*
  609                  * same for the rcv ones, they are only here for the
  610                  * accounting/select.
  611                  */
  612                 SCTP_SB_CLEAR(so->so_rcv);
  613 
  614                 /* Now null out the reference, we are completely detached. */
  615                 so->so_pcb = NULL;
  616                 SOCK_UNLOCK(so);
  617         } else {
  618                 flags = inp->sctp_flags;
  619                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
  620                         goto sctp_must_try_again;
  621                 }
  622         }
  623         return;
  624 }
  625 
  626 
  627 int
  628 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
  629     struct mbuf *control, struct thread *p);
  630 
  631 
  632 int
  633 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
  634     struct mbuf *control, struct thread *p)
  635 {
  636         struct sctp_inpcb *inp;
  637         int error;
  638 
  639         inp = (struct sctp_inpcb *)so->so_pcb;
  640         if (inp == NULL) {
  641                 if (control) {
  642                         sctp_m_freem(control);
  643                         control = NULL;
  644                 }
  645                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
  646                 sctp_m_freem(m);
  647                 return (EINVAL);
  648         }
  649         /* Got to have an to address if we are NOT a connected socket */
  650         if ((addr == NULL) &&
  651             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) ||
  652             (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE))) {
  653                 goto connected_type;
  654         } else if (addr == NULL) {
  655                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
  656                 error = EDESTADDRREQ;
  657                 sctp_m_freem(m);
  658                 if (control) {
  659                         sctp_m_freem(control);
  660                         control = NULL;
  661                 }
  662                 return (error);
  663         }
  664 #ifdef INET6
  665         if (addr->sa_family != AF_INET) {
  666                 /* must be a v4 address! */
  667                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
  668                 sctp_m_freem(m);
  669                 if (control) {
  670                         sctp_m_freem(control);
  671                         control = NULL;
  672                 }
  673                 error = EDESTADDRREQ;
  674                 return (error);
  675         }
  676 #endif                          /* INET6 */
  677 connected_type:
  678         /* now what about control */
  679         if (control) {
  680                 if (inp->control) {
  681                         SCTP_PRINTF("huh? control set?\n");
  682                         sctp_m_freem(inp->control);
  683                         inp->control = NULL;
  684                 }
  685                 inp->control = control;
  686         }
  687         /* Place the data */
  688         if (inp->pkt) {
  689                 SCTP_BUF_NEXT(inp->pkt_last) = m;
  690                 inp->pkt_last = m;
  691         } else {
  692                 inp->pkt_last = inp->pkt = m;
  693         }
  694         if (
  695         /* FreeBSD uses a flag passed */
  696             ((flags & PRUS_MORETOCOME) == 0)
  697             ) {
  698                 /*
  699                  * note with the current version this code will only be used
  700                  * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for
  701                  * re-defining sosend to use the sctp_sosend. One can
  702                  * optionally switch back to this code (by changing back the
  703                  * definitions) but this is not advisable. This code is used
  704                  * by FreeBSD when sending a file with sendfile() though.
  705                  */
  706                 int ret;
  707 
  708                 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
  709                 inp->pkt = NULL;
  710                 inp->control = NULL;
  711                 return (ret);
  712         } else {
  713                 return (0);
  714         }
  715 }
  716 
  717 int
  718 sctp_disconnect(struct socket *so)
  719 {
  720         struct sctp_inpcb *inp;
  721 
  722         inp = (struct sctp_inpcb *)so->so_pcb;
  723         if (inp == NULL) {
  724                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
  725                 return (ENOTCONN);
  726         }
  727         SCTP_INP_RLOCK(inp);
  728         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
  729             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
  730                 if (LIST_EMPTY(&inp->sctp_asoc_list)) {
  731                         /* No connection */
  732                         SCTP_INP_RUNLOCK(inp);
  733                         return (0);
  734                 } else {
  735                         struct sctp_association *asoc;
  736                         struct sctp_tcb *stcb;
  737 
  738                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
  739                         if (stcb == NULL) {
  740                                 SCTP_INP_RUNLOCK(inp);
  741                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
  742                                 return (EINVAL);
  743                         }
  744                         SCTP_TCB_LOCK(stcb);
  745                         asoc = &stcb->asoc;
  746                         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
  747                                 /* We are about to be freed, out of here */
  748                                 SCTP_TCB_UNLOCK(stcb);
  749                                 SCTP_INP_RUNLOCK(inp);
  750                                 return (0);
  751                         }
  752                         if (((so->so_options & SO_LINGER) &&
  753                             (so->so_linger == 0)) ||
  754                             (so->so_rcv.sb_cc > 0)) {
  755                                 if (SCTP_GET_STATE(asoc) !=
  756                                     SCTP_STATE_COOKIE_WAIT) {
  757                                         /* Left with Data unread */
  758                                         struct mbuf *err;
  759 
  760                                         err = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr), 0, M_NOWAIT, 1, MT_DATA);
  761                                         if (err) {
  762                                                 /*
  763                                                  * Fill in the user
  764                                                  * initiated abort
  765                                                  */
  766                                                 struct sctp_paramhdr *ph;
  767 
  768                                                 ph = mtod(err, struct sctp_paramhdr *);
  769                                                 SCTP_BUF_LEN(err) = sizeof(struct sctp_paramhdr);
  770                                                 ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT);
  771                                                 ph->param_length = htons(SCTP_BUF_LEN(err));
  772                                         }
  773                                         sctp_send_abort_tcb(stcb, err, SCTP_SO_LOCKED);
  774                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
  775                                 }
  776                                 SCTP_INP_RUNLOCK(inp);
  777                                 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
  778                                     (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
  779                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
  780                                 }
  781                                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3);
  782                                 /* No unlock tcb assoc is gone */
  783                                 return (0);
  784                         }
  785                         if (TAILQ_EMPTY(&asoc->send_queue) &&
  786                             TAILQ_EMPTY(&asoc->sent_queue) &&
  787                             (asoc->stream_queue_cnt == 0)) {
  788                                 /* there is nothing queued to send, so done */
  789                                 if (asoc->locked_on_sending) {
  790                                         goto abort_anyway;
  791                                 }
  792                                 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) &&
  793                                     (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_ACK_SENT)) {
  794                                         /* only send SHUTDOWN 1st time thru */
  795                                         struct sctp_nets *netp;
  796 
  797                                         if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
  798                                             (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
  799                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
  800                                         }
  801                                         SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
  802                                         SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
  803                                         sctp_stop_timers_for_shutdown(stcb);
  804                                         if (stcb->asoc.alternate) {
  805                                                 netp = stcb->asoc.alternate;
  806                                         } else {
  807                                                 netp = stcb->asoc.primary_destination;
  808                                         }
  809                                         sctp_send_shutdown(stcb, netp);
  810                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
  811                                             stcb->sctp_ep, stcb, netp);
  812                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
  813                                             stcb->sctp_ep, stcb, netp);
  814                                         sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
  815                                 }
  816                         } else {
  817                                 /*
  818                                  * we still got (or just got) data to send,
  819                                  * so set SHUTDOWN_PENDING
  820                                  */
  821                                 /*
  822                                  * XXX sockets draft says that SCTP_EOF
  823                                  * should be sent with no data. currently,
  824                                  * we will allow user data to be sent first
  825                                  * and move to SHUTDOWN-PENDING
  826                                  */
  827                                 struct sctp_nets *netp;
  828 
  829                                 if (stcb->asoc.alternate) {
  830                                         netp = stcb->asoc.alternate;
  831                                 } else {
  832                                         netp = stcb->asoc.primary_destination;
  833                                 }
  834 
  835                                 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
  836                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
  837                                     netp);
  838                                 if (asoc->locked_on_sending) {
  839                                         /* Locked to send out the data */
  840                                         struct sctp_stream_queue_pending *sp;
  841 
  842                                         sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
  843                                         if (sp == NULL) {
  844                                                 SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
  845                                                     asoc->locked_on_sending->stream_no);
  846                                         } else {
  847                                                 if ((sp->length == 0) && (sp->msg_is_complete == 0))
  848                                                         asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT;
  849                                         }
  850                                 }
  851                                 if (TAILQ_EMPTY(&asoc->send_queue) &&
  852                                     TAILQ_EMPTY(&asoc->sent_queue) &&
  853                                     (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
  854                                         struct mbuf *op_err;
  855 
  856                         abort_anyway:
  857                                         op_err = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr),
  858                                             0, M_NOWAIT, 1, MT_DATA);
  859                                         if (op_err) {
  860                                                 /*
  861                                                  * Fill in the user
  862                                                  * initiated abort
  863                                                  */
  864                                                 struct sctp_paramhdr *ph;
  865 
  866                                                 SCTP_BUF_LEN(op_err) = sizeof(struct sctp_paramhdr);
  867                                                 ph = mtod(op_err, struct sctp_paramhdr *);
  868                                                 ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT);
  869                                                 ph->param_length = htons(SCTP_BUF_LEN(op_err));
  870                                         }
  871                                         stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4;
  872                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
  873                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
  874                                         if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
  875                                             (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
  876                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
  877                                         }
  878                                         SCTP_INP_RUNLOCK(inp);
  879                                         (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5);
  880                                         return (0);
  881                                 } else {
  882                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
  883                                 }
  884                         }
  885                         soisdisconnecting(so);
  886                         SCTP_TCB_UNLOCK(stcb);
  887                         SCTP_INP_RUNLOCK(inp);
  888                         return (0);
  889                 }
  890                 /* not reached */
  891         } else {
  892                 /* UDP model does not support this */
  893                 SCTP_INP_RUNLOCK(inp);
  894                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
  895                 return (EOPNOTSUPP);
  896         }
  897 }
  898 
  899 int
  900 sctp_flush(struct socket *so, int how)
  901 {
  902         /*
  903          * We will just clear out the values and let subsequent close clear
  904          * out the data, if any. Note if the user did a shutdown(SHUT_RD)
  905          * they will not be able to read the data, the socket will block
  906          * that from happening.
  907          */
  908         struct sctp_inpcb *inp;
  909 
  910         inp = (struct sctp_inpcb *)so->so_pcb;
  911         if (inp == NULL) {
  912                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
  913                 return (EINVAL);
  914         }
  915         SCTP_INP_RLOCK(inp);
  916         /* For the 1 to many model this does nothing */
  917         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
  918                 SCTP_INP_RUNLOCK(inp);
  919                 return (0);
  920         }
  921         SCTP_INP_RUNLOCK(inp);
  922         if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) {
  923                 /*
  924                  * First make sure the sb will be happy, we don't use these
  925                  * except maybe the count
  926                  */
  927                 SCTP_INP_WLOCK(inp);
  928                 SCTP_INP_READ_LOCK(inp);
  929                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_CANT_READ;
  930                 SCTP_INP_READ_UNLOCK(inp);
  931                 SCTP_INP_WUNLOCK(inp);
  932                 so->so_rcv.sb_cc = 0;
  933                 so->so_rcv.sb_mbcnt = 0;
  934                 so->so_rcv.sb_mb = NULL;
  935         }
  936         if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) {
  937                 /*
  938                  * First make sure the sb will be happy, we don't use these
  939                  * except maybe the count
  940                  */
  941                 so->so_snd.sb_cc = 0;
  942                 so->so_snd.sb_mbcnt = 0;
  943                 so->so_snd.sb_mb = NULL;
  944 
  945         }
  946         return (0);
  947 }
  948 
  949 int
  950 sctp_shutdown(struct socket *so)
  951 {
  952         struct sctp_inpcb *inp;
  953 
  954         inp = (struct sctp_inpcb *)so->so_pcb;
  955         if (inp == NULL) {
  956                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
  957                 return (EINVAL);
  958         }
  959         SCTP_INP_RLOCK(inp);
  960         /* For UDP model this is a invalid call */
  961         if (!((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
  962             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) {
  963                 /* Restore the flags that the soshutdown took away. */
  964                 SOCKBUF_LOCK(&so->so_rcv);
  965                 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE;
  966                 SOCKBUF_UNLOCK(&so->so_rcv);
  967                 /* This proc will wakeup for read and do nothing (I hope) */
  968                 SCTP_INP_RUNLOCK(inp);
  969                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
  970                 return (EOPNOTSUPP);
  971         }
  972         /*
  973          * Ok if we reach here its the TCP model and it is either a SHUT_WR
  974          * or SHUT_RDWR. This means we put the shutdown flag against it.
  975          */
  976         {
  977                 struct sctp_tcb *stcb;
  978                 struct sctp_association *asoc;
  979 
  980                 if ((so->so_state &
  981                     (SS_ISCONNECTED | SS_ISCONNECTING | SS_ISDISCONNECTING)) == 0) {
  982                         SCTP_INP_RUNLOCK(inp);
  983                         return (ENOTCONN);
  984                 }
  985                 socantsendmore(so);
  986 
  987                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
  988                 if (stcb == NULL) {
  989                         /*
  990                          * Ok we hit the case that the shutdown call was
  991                          * made after an abort or something. Nothing to do
  992                          * now.
  993                          */
  994                         SCTP_INP_RUNLOCK(inp);
  995                         return (0);
  996                 }
  997                 SCTP_TCB_LOCK(stcb);
  998                 asoc = &stcb->asoc;
  999                 if (TAILQ_EMPTY(&asoc->send_queue) &&
 1000                     TAILQ_EMPTY(&asoc->sent_queue) &&
 1001                     (asoc->stream_queue_cnt == 0)) {
 1002                         if (asoc->locked_on_sending) {
 1003                                 goto abort_anyway;
 1004                         }
 1005                         /* there is nothing queued to send, so I'm done... */
 1006                         if (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) {
 1007                                 /* only send SHUTDOWN the first time through */
 1008                                 struct sctp_nets *netp;
 1009 
 1010                                 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
 1011                                     (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 1012                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 1013                                 }
 1014                                 SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
 1015                                 SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
 1016                                 sctp_stop_timers_for_shutdown(stcb);
 1017                                 if (stcb->asoc.alternate) {
 1018                                         netp = stcb->asoc.alternate;
 1019                                 } else {
 1020                                         netp = stcb->asoc.primary_destination;
 1021                                 }
 1022                                 sctp_send_shutdown(stcb, netp);
 1023                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 1024                                     stcb->sctp_ep, stcb, netp);
 1025                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
 1026                                     stcb->sctp_ep, stcb, netp);
 1027                                 sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
 1028                         }
 1029                 } else {
 1030                         /*
 1031                          * we still got (or just got) data to send, so set
 1032                          * SHUTDOWN_PENDING
 1033                          */
 1034                         struct sctp_nets *netp;
 1035 
 1036                         if (stcb->asoc.alternate) {
 1037                                 netp = stcb->asoc.alternate;
 1038                         } else {
 1039                                 netp = stcb->asoc.primary_destination;
 1040                         }
 1041 
 1042                         asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
 1043                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
 1044                             netp);
 1045 
 1046                         if (asoc->locked_on_sending) {
 1047                                 /* Locked to send out the data */
 1048                                 struct sctp_stream_queue_pending *sp;
 1049 
 1050                                 sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
 1051                                 if (sp == NULL) {
 1052                                         SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
 1053                                             asoc->locked_on_sending->stream_no);
 1054                                 } else {
 1055                                         if ((sp->length == 0) && (sp->msg_is_complete == 0)) {
 1056                                                 asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT;
 1057                                         }
 1058                                 }
 1059                         }
 1060                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 1061                             TAILQ_EMPTY(&asoc->sent_queue) &&
 1062                             (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 1063                                 struct mbuf *op_err;
 1064 
 1065                 abort_anyway:
 1066                                 op_err = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr),
 1067                                     0, M_NOWAIT, 1, MT_DATA);
 1068                                 if (op_err) {
 1069                                         /* Fill in the user initiated abort */
 1070                                         struct sctp_paramhdr *ph;
 1071 
 1072                                         SCTP_BUF_LEN(op_err) = sizeof(struct sctp_paramhdr);
 1073                                         ph = mtod(op_err, struct sctp_paramhdr *);
 1074                                         ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT);
 1075                                         ph->param_length = htons(SCTP_BUF_LEN(op_err));
 1076                                 }
 1077                                 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6;
 1078                                 sctp_abort_an_association(stcb->sctp_ep, stcb,
 1079                                     op_err, SCTP_SO_LOCKED);
 1080                                 goto skip_unlock;
 1081                         } else {
 1082                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 1083                         }
 1084                 }
 1085                 SCTP_TCB_UNLOCK(stcb);
 1086         }
 1087 skip_unlock:
 1088         SCTP_INP_RUNLOCK(inp);
 1089         return (0);
 1090 }
 1091 
 1092 /*
 1093  * copies a "user" presentable address and removes embedded scope, etc.
 1094  * returns 0 on success, 1 on error
 1095  */
 1096 static uint32_t
 1097 sctp_fill_user_address(struct sockaddr_storage *ss, struct sockaddr *sa)
 1098 {
 1099 #ifdef INET6
 1100         struct sockaddr_in6 lsa6;
 1101 
 1102         sa = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)sa,
 1103             &lsa6);
 1104 #endif
 1105         memcpy(ss, sa, sa->sa_len);
 1106         return (0);
 1107 }
 1108 
 1109 
 1110 
 1111 /*
 1112  * NOTE: assumes addr lock is held
 1113  */
 1114 static size_t
 1115 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp,
 1116     struct sctp_tcb *stcb,
 1117     size_t limit,
 1118     struct sockaddr_storage *sas,
 1119     uint32_t vrf_id)
 1120 {
 1121         struct sctp_ifn *sctp_ifn;
 1122         struct sctp_ifa *sctp_ifa;
 1123         size_t actual;
 1124         int loopback_scope;
 1125 
 1126 #if defined(INET)
 1127         int ipv4_local_scope, ipv4_addr_legal;
 1128 
 1129 #endif
 1130 #if defined(INET6)
 1131         int local_scope, site_scope, ipv6_addr_legal;
 1132 
 1133 #endif
 1134         struct sctp_vrf *vrf;
 1135 
 1136         actual = 0;
 1137         if (limit <= 0)
 1138                 return (actual);
 1139 
 1140         if (stcb) {
 1141                 /* Turn on all the appropriate scope */
 1142                 loopback_scope = stcb->asoc.scope.loopback_scope;
 1143 #if defined(INET)
 1144                 ipv4_local_scope = stcb->asoc.scope.ipv4_local_scope;
 1145                 ipv4_addr_legal = stcb->asoc.scope.ipv4_addr_legal;
 1146 #endif
 1147 #if defined(INET6)
 1148                 local_scope = stcb->asoc.scope.local_scope;
 1149                 site_scope = stcb->asoc.scope.site_scope;
 1150                 ipv6_addr_legal = stcb->asoc.scope.ipv6_addr_legal;
 1151 #endif
 1152         } else {
 1153                 /* Use generic values for endpoints. */
 1154                 loopback_scope = 1;
 1155 #if defined(INET)
 1156                 ipv4_local_scope = 1;
 1157 #endif
 1158 #if defined(INET6)
 1159                 local_scope = 1;
 1160                 site_scope = 1;
 1161 #endif
 1162                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 1163 #if defined(INET6)
 1164                         ipv6_addr_legal = 1;
 1165 #endif
 1166 #if defined(INET)
 1167                         if (SCTP_IPV6_V6ONLY(inp)) {
 1168                                 ipv4_addr_legal = 0;
 1169                         } else {
 1170                                 ipv4_addr_legal = 1;
 1171                         }
 1172 #endif
 1173                 } else {
 1174 #if defined(INET6)
 1175                         ipv6_addr_legal = 0;
 1176 #endif
 1177 #if defined(INET)
 1178                         ipv4_addr_legal = 1;
 1179 #endif
 1180                 }
 1181         }
 1182         vrf = sctp_find_vrf(vrf_id);
 1183         if (vrf == NULL) {
 1184                 return (0);
 1185         }
 1186         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
 1187                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
 1188                         if ((loopback_scope == 0) &&
 1189                             SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) {
 1190                                 /* Skip loopback if loopback_scope not set */
 1191                                 continue;
 1192                         }
 1193                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
 1194                                 if (stcb) {
 1195                                         /*
 1196                                          * For the BOUND-ALL case, the list
 1197                                          * associated with a TCB is Always
 1198                                          * considered a reverse list.. i.e.
 1199                                          * it lists addresses that are NOT
 1200                                          * part of the association. If this
 1201                                          * is one of those we must skip it.
 1202                                          */
 1203                                         if (sctp_is_addr_restricted(stcb,
 1204                                             sctp_ifa)) {
 1205                                                 continue;
 1206                                         }
 1207                                 }
 1208                                 switch (sctp_ifa->address.sa.sa_family) {
 1209 #ifdef INET
 1210                                 case AF_INET:
 1211                                         if (ipv4_addr_legal) {
 1212                                                 struct sockaddr_in *sin;
 1213 
 1214                                                 sin = (struct sockaddr_in *)&sctp_ifa->address.sa;
 1215                                                 if (sin->sin_addr.s_addr == 0) {
 1216                                                         /*
 1217                                                          * we skip
 1218                                                          * unspecifed
 1219                                                          * addresses
 1220                                                          */
 1221                                                         continue;
 1222                                                 }
 1223                                                 if ((ipv4_local_scope == 0) &&
 1224                                                     (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) {
 1225                                                         continue;
 1226                                                 }
 1227 #ifdef INET6
 1228                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
 1229                                                         in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)sas);
 1230                                                         ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
 1231                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6));
 1232                                                         actual += sizeof(struct sockaddr_in6);
 1233                                                 } else {
 1234 #endif
 1235                                                         memcpy(sas, sin, sizeof(*sin));
 1236                                                         ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
 1237                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin));
 1238                                                         actual += sizeof(*sin);
 1239 #ifdef INET6
 1240                                                 }
 1241 #endif
 1242                                                 if (actual >= limit) {
 1243                                                         return (actual);
 1244                                                 }
 1245                                         } else {
 1246                                                 continue;
 1247                                         }
 1248                                         break;
 1249 #endif
 1250 #ifdef INET6
 1251                                 case AF_INET6:
 1252                                         if (ipv6_addr_legal) {
 1253                                                 struct sockaddr_in6 *sin6;
 1254 
 1255                                                 sin6 = (struct sockaddr_in6 *)&sctp_ifa->address.sa;
 1256                                                 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
 1257                                                         /*
 1258                                                          * we skip
 1259                                                          * unspecifed
 1260                                                          * addresses
 1261                                                          */
 1262                                                         continue;
 1263                                                 }
 1264                                                 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
 1265                                                         if (local_scope == 0)
 1266                                                                 continue;
 1267                                                         if (sin6->sin6_scope_id == 0) {
 1268                                                                 if (sa6_recoverscope(sin6) != 0)
 1269                                                                         /*
 1270                                                                          * 
 1271                                                                          * bad
 1272                                                                          * 
 1273                                                                          * li
 1274                                                                          * nk
 1275                                                                          * 
 1276                                                                          * loc
 1277                                                                          * al
 1278                                                                          * 
 1279                                                                          * add
 1280                                                                          * re
 1281                                                                          * ss
 1282                                                                          * */
 1283                                                                         continue;
 1284                                                         }
 1285                                                 }
 1286                                                 if ((site_scope == 0) &&
 1287                                                     (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) {
 1288                                                         continue;
 1289                                                 }
 1290                                                 memcpy(sas, sin6, sizeof(*sin6));
 1291                                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
 1292                                                 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin6));
 1293                                                 actual += sizeof(*sin6);
 1294                                                 if (actual >= limit) {
 1295                                                         return (actual);
 1296                                                 }
 1297                                         } else {
 1298                                                 continue;
 1299                                         }
 1300                                         break;
 1301 #endif
 1302                                 default:
 1303                                         /* TSNH */
 1304                                         break;
 1305                                 }
 1306                         }
 1307                 }
 1308         } else {
 1309                 struct sctp_laddr *laddr;
 1310 
 1311                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
 1312                         if (stcb) {
 1313                                 if (sctp_is_addr_restricted(stcb, laddr->ifa)) {
 1314                                         continue;
 1315                                 }
 1316                         }
 1317                         if (sctp_fill_user_address(sas, &laddr->ifa->address.sa))
 1318                                 continue;
 1319                         switch (laddr->ifa->address.sa.sa_family) {
 1320 #ifdef INET
 1321                         case AF_INET:
 1322                                 ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
 1323                                 break;
 1324 #endif
 1325 #ifdef INET6
 1326                         case AF_INET6:
 1327                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
 1328                                 break;
 1329 #endif
 1330                         default:
 1331                                 /* TSNH */
 1332                                 break;
 1333                         }
 1334                         sas = (struct sockaddr_storage *)((caddr_t)sas +
 1335                             laddr->ifa->address.sa.sa_len);
 1336                         actual += laddr->ifa->address.sa.sa_len;
 1337                         if (actual >= limit) {
 1338                                 return (actual);
 1339                         }
 1340                 }
 1341         }
 1342         return (actual);
 1343 }
 1344 
 1345 static size_t
 1346 sctp_fill_up_addresses(struct sctp_inpcb *inp,
 1347     struct sctp_tcb *stcb,
 1348     size_t limit,
 1349     struct sockaddr_storage *sas)
 1350 {
 1351         size_t size = 0;
 1352 
 1353         SCTP_IPI_ADDR_RLOCK();
 1354         /* fill up addresses for the endpoint's default vrf */
 1355         size = sctp_fill_up_addresses_vrf(inp, stcb, limit, sas,
 1356             inp->def_vrf_id);
 1357         SCTP_IPI_ADDR_RUNLOCK();
 1358         return (size);
 1359 }
 1360 
 1361 /*
 1362  * NOTE: assumes addr lock is held
 1363  */
 1364 static int
 1365 sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id)
 1366 {
 1367         int cnt = 0;
 1368         struct sctp_vrf *vrf = NULL;
 1369 
 1370         /*
 1371          * In both sub-set bound an bound_all cases we return the MAXIMUM
 1372          * number of addresses that you COULD get. In reality the sub-set
 1373          * bound may have an exclusion list for a given TCB OR in the
 1374          * bound-all case a TCB may NOT include the loopback or other
 1375          * addresses as well.
 1376          */
 1377         vrf = sctp_find_vrf(vrf_id);
 1378         if (vrf == NULL) {
 1379                 return (0);
 1380         }
 1381         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
 1382                 struct sctp_ifn *sctp_ifn;
 1383                 struct sctp_ifa *sctp_ifa;
 1384 
 1385                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
 1386                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
 1387                                 /* Count them if they are the right type */
 1388                                 switch (sctp_ifa->address.sa.sa_family) {
 1389 #ifdef INET
 1390                                 case AF_INET:
 1391                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
 1392                                                 cnt += sizeof(struct sockaddr_in6);
 1393                                         else
 1394                                                 cnt += sizeof(struct sockaddr_in);
 1395                                         break;
 1396 #endif
 1397 #ifdef INET6
 1398                                 case AF_INET6:
 1399                                         cnt += sizeof(struct sockaddr_in6);
 1400                                         break;
 1401 #endif
 1402                                 default:
 1403                                         break;
 1404                                 }
 1405                         }
 1406                 }
 1407         } else {
 1408                 struct sctp_laddr *laddr;
 1409 
 1410                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
 1411                         switch (laddr->ifa->address.sa.sa_family) {
 1412 #ifdef INET
 1413                         case AF_INET:
 1414                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
 1415                                         cnt += sizeof(struct sockaddr_in6);
 1416                                 else
 1417                                         cnt += sizeof(struct sockaddr_in);
 1418                                 break;
 1419 #endif
 1420 #ifdef INET6
 1421                         case AF_INET6:
 1422                                 cnt += sizeof(struct sockaddr_in6);
 1423                                 break;
 1424 #endif
 1425                         default:
 1426                                 break;
 1427                         }
 1428                 }
 1429         }
 1430         return (cnt);
 1431 }
 1432 
 1433 static int
 1434 sctp_count_max_addresses(struct sctp_inpcb *inp)
 1435 {
 1436         int cnt = 0;
 1437 
 1438         SCTP_IPI_ADDR_RLOCK();
 1439         /* count addresses for the endpoint's default VRF */
 1440         cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id);
 1441         SCTP_IPI_ADDR_RUNLOCK();
 1442         return (cnt);
 1443 }
 1444 
 1445 static int
 1446 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval,
 1447     size_t optsize, void *p, int delay)
 1448 {
 1449         int error = 0;
 1450         int creat_lock_on = 0;
 1451         struct sctp_tcb *stcb = NULL;
 1452         struct sockaddr *sa;
 1453         int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr;
 1454         uint32_t vrf_id;
 1455         int bad_addresses = 0;
 1456         sctp_assoc_t *a_id;
 1457 
 1458         SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n");
 1459 
 1460         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
 1461             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
 1462                 /* We are already connected AND the TCP model */
 1463                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
 1464                 return (EADDRINUSE);
 1465         }
 1466         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
 1467             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
 1468                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1469                 return (EINVAL);
 1470         }
 1471         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
 1472                 SCTP_INP_RLOCK(inp);
 1473                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
 1474                 SCTP_INP_RUNLOCK(inp);
 1475         }
 1476         if (stcb) {
 1477                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
 1478                 return (EALREADY);
 1479         }
 1480         SCTP_INP_INCR_REF(inp);
 1481         SCTP_ASOC_CREATE_LOCK(inp);
 1482         creat_lock_on = 1;
 1483         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
 1484             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
 1485                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
 1486                 error = EFAULT;
 1487                 goto out_now;
 1488         }
 1489         totaddrp = (int *)optval;
 1490         totaddr = *totaddrp;
 1491         sa = (struct sockaddr *)(totaddrp + 1);
 1492         stcb = sctp_connectx_helper_find(inp, sa, &totaddr, &num_v4, &num_v6, &error, (optsize - sizeof(int)), &bad_addresses);
 1493         if ((stcb != NULL) || bad_addresses) {
 1494                 /* Already have or am bring up an association */
 1495                 SCTP_ASOC_CREATE_UNLOCK(inp);
 1496                 creat_lock_on = 0;
 1497                 if (stcb)
 1498                         SCTP_TCB_UNLOCK(stcb);
 1499                 if (bad_addresses == 0) {
 1500                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
 1501                         error = EALREADY;
 1502                 }
 1503                 goto out_now;
 1504         }
 1505 #ifdef INET6
 1506         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
 1507             (num_v6 > 0)) {
 1508                 error = EINVAL;
 1509                 goto out_now;
 1510         }
 1511         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
 1512             (num_v4 > 0)) {
 1513                 struct in6pcb *inp6;
 1514 
 1515                 inp6 = (struct in6pcb *)inp;
 1516                 if (SCTP_IPV6_V6ONLY(inp6)) {
 1517                         /*
 1518                          * if IPV6_V6ONLY flag, ignore connections destined
 1519                          * to a v4 addr or v4-mapped addr
 1520                          */
 1521                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1522                         error = EINVAL;
 1523                         goto out_now;
 1524                 }
 1525         }
 1526 #endif                          /* INET6 */
 1527         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
 1528             SCTP_PCB_FLAGS_UNBOUND) {
 1529                 /* Bind a ephemeral port */
 1530                 error = sctp_inpcb_bind(so, NULL, NULL, p);
 1531                 if (error) {
 1532                         goto out_now;
 1533                 }
 1534         }
 1535         /* FIX ME: do we want to pass in a vrf on the connect call? */
 1536         vrf_id = inp->def_vrf_id;
 1537 
 1538 
 1539         /* We are GOOD to go */
 1540         stcb = sctp_aloc_assoc(inp, sa, &error, 0, vrf_id,
 1541             (struct thread *)p
 1542             );
 1543         if (stcb == NULL) {
 1544                 /* Gak! no memory */
 1545                 goto out_now;
 1546         }
 1547         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
 1548                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
 1549                 /* Set the connected flag so we can queue data */
 1550                 soisconnecting(so);
 1551         }
 1552         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
 1553         /* move to second address */
 1554         switch (sa->sa_family) {
 1555 #ifdef INET
 1556         case AF_INET:
 1557                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in));
 1558                 break;
 1559 #endif
 1560 #ifdef INET6
 1561         case AF_INET6:
 1562                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6));
 1563                 break;
 1564 #endif
 1565         default:
 1566                 break;
 1567         }
 1568 
 1569         error = 0;
 1570         sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error);
 1571         /* Fill in the return id */
 1572         if (error) {
 1573                 (void)sctp_free_assoc(inp, stcb, SCTP_PCBFREE_FORCE, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6);
 1574                 goto out_now;
 1575         }
 1576         a_id = (sctp_assoc_t *) optval;
 1577         *a_id = sctp_get_associd(stcb);
 1578 
 1579         /* initialize authentication parameters for the assoc */
 1580         sctp_initialize_auth_params(inp, stcb);
 1581 
 1582         if (delay) {
 1583                 /* doing delayed connection */
 1584                 stcb->asoc.delayed_connection = 1;
 1585                 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination);
 1586         } else {
 1587                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
 1588                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
 1589         }
 1590         SCTP_TCB_UNLOCK(stcb);
 1591         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
 1592                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
 1593                 /* Set the connected flag so we can queue data */
 1594                 soisconnecting(so);
 1595         }
 1596 out_now:
 1597         if (creat_lock_on) {
 1598                 SCTP_ASOC_CREATE_UNLOCK(inp);
 1599         }
 1600         SCTP_INP_DECR_REF(inp);
 1601         return (error);
 1602 }
 1603 
 1604 #define SCTP_FIND_STCB(inp, stcb, assoc_id) { \
 1605         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\
 1606             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \
 1607                 SCTP_INP_RLOCK(inp); \
 1608                 stcb = LIST_FIRST(&inp->sctp_asoc_list); \
 1609                 if (stcb) { \
 1610                         SCTP_TCB_LOCK(stcb); \
 1611                 } \
 1612                 SCTP_INP_RUNLOCK(inp); \
 1613         } else if (assoc_id > SCTP_ALL_ASSOC) { \
 1614                 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \
 1615                 if (stcb == NULL) { \
 1616                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \
 1617                         error = ENOENT; \
 1618                         break; \
 1619                 } \
 1620         } else { \
 1621                 stcb = NULL; \
 1622         } \
 1623   }
 1624 
 1625 
 1626 #define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\
 1627         if (size < sizeof(type)) { \
 1628                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \
 1629                 error = EINVAL; \
 1630                 break; \
 1631         } else { \
 1632                 destp = (type *)srcp; \
 1633         } \
 1634       }
 1635 
 1636 static int
 1637 sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize,
 1638     void *p)
 1639 {
 1640         struct sctp_inpcb *inp = NULL;
 1641         int error, val = 0;
 1642         struct sctp_tcb *stcb = NULL;
 1643 
 1644         if (optval == NULL) {
 1645                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1646                 return (EINVAL);
 1647         }
 1648         inp = (struct sctp_inpcb *)so->so_pcb;
 1649         if (inp == NULL) {
 1650                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1651                 return EINVAL;
 1652         }
 1653         error = 0;
 1654 
 1655         switch (optname) {
 1656         case SCTP_NODELAY:
 1657         case SCTP_AUTOCLOSE:
 1658         case SCTP_EXPLICIT_EOR:
 1659         case SCTP_AUTO_ASCONF:
 1660         case SCTP_DISABLE_FRAGMENTS:
 1661         case SCTP_I_WANT_MAPPED_V4_ADDR:
 1662         case SCTP_USE_EXT_RCVINFO:
 1663                 SCTP_INP_RLOCK(inp);
 1664                 switch (optname) {
 1665                 case SCTP_DISABLE_FRAGMENTS:
 1666                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT);
 1667                         break;
 1668                 case SCTP_I_WANT_MAPPED_V4_ADDR:
 1669                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4);
 1670                         break;
 1671                 case SCTP_AUTO_ASCONF:
 1672                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
 1673                                 /* only valid for bound all sockets */
 1674                                 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF);
 1675                         } else {
 1676                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1677                                 error = EINVAL;
 1678                                 goto flags_out;
 1679                         }
 1680                         break;
 1681                 case SCTP_EXPLICIT_EOR:
 1682                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR);
 1683                         break;
 1684                 case SCTP_NODELAY:
 1685                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY);
 1686                         break;
 1687                 case SCTP_USE_EXT_RCVINFO:
 1688                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO);
 1689                         break;
 1690                 case SCTP_AUTOCLOSE:
 1691                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE))
 1692                                 val = TICKS_TO_SEC(inp->sctp_ep.auto_close_time);
 1693                         else
 1694                                 val = 0;
 1695                         break;
 1696 
 1697                 default:
 1698                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
 1699                         error = ENOPROTOOPT;
 1700                 }               /* end switch (sopt->sopt_name) */
 1701                 if (*optsize < sizeof(val)) {
 1702                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1703                         error = EINVAL;
 1704                 }
 1705 flags_out:
 1706                 SCTP_INP_RUNLOCK(inp);
 1707                 if (error == 0) {
 1708                         /* return the option value */
 1709                         *(int *)optval = val;
 1710                         *optsize = sizeof(val);
 1711                 }
 1712                 break;
 1713         case SCTP_GET_PACKET_LOG:
 1714                 {
 1715 #ifdef  SCTP_PACKET_LOGGING
 1716                         uint8_t *target;
 1717                         int ret;
 1718 
 1719                         SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize);
 1720                         ret = sctp_copy_out_packet_log(target, (int)*optsize);
 1721                         *optsize = ret;
 1722 #else
 1723                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 1724                         error = EOPNOTSUPP;
 1725 #endif
 1726                         break;
 1727                 }
 1728         case SCTP_REUSE_PORT:
 1729                 {
 1730                         uint32_t *value;
 1731 
 1732                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
 1733                                 /* Can't do this for a 1-m socket */
 1734                                 error = EINVAL;
 1735                                 break;
 1736                         }
 1737                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
 1738                         *value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
 1739                         *optsize = sizeof(uint32_t);
 1740                         break;
 1741                 }
 1742         case SCTP_PARTIAL_DELIVERY_POINT:
 1743                 {
 1744                         uint32_t *value;
 1745 
 1746                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
 1747                         *value = inp->partial_delivery_point;
 1748                         *optsize = sizeof(uint32_t);
 1749                         break;
 1750                 }
 1751         case SCTP_FRAGMENT_INTERLEAVE:
 1752                 {
 1753                         uint32_t *value;
 1754 
 1755                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
 1756                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) {
 1757                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) {
 1758                                         *value = SCTP_FRAG_LEVEL_2;
 1759                                 } else {
 1760                                         *value = SCTP_FRAG_LEVEL_1;
 1761                                 }
 1762                         } else {
 1763                                 *value = SCTP_FRAG_LEVEL_0;
 1764                         }
 1765                         *optsize = sizeof(uint32_t);
 1766                         break;
 1767                 }
 1768         case SCTP_CMT_ON_OFF:
 1769                 {
 1770                         struct sctp_assoc_value *av;
 1771 
 1772                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 1773                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 1774                         if (stcb) {
 1775                                 av->assoc_value = stcb->asoc.sctp_cmt_on_off;
 1776                                 SCTP_TCB_UNLOCK(stcb);
 1777                         } else {
 1778                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 1779                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 1780                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 1781                                         SCTP_INP_RLOCK(inp);
 1782                                         av->assoc_value = inp->sctp_cmt_on_off;
 1783                                         SCTP_INP_RUNLOCK(inp);
 1784                                 } else {
 1785                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1786                                         error = EINVAL;
 1787                                 }
 1788                         }
 1789                         if (error == 0) {
 1790                                 *optsize = sizeof(struct sctp_assoc_value);
 1791                         }
 1792                         break;
 1793                 }
 1794         case SCTP_PLUGGABLE_CC:
 1795                 {
 1796                         struct sctp_assoc_value *av;
 1797 
 1798                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 1799                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 1800                         if (stcb) {
 1801                                 av->assoc_value = stcb->asoc.congestion_control_module;
 1802                                 SCTP_TCB_UNLOCK(stcb);
 1803                         } else {
 1804                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 1805                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 1806                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 1807                                         SCTP_INP_RLOCK(inp);
 1808                                         av->assoc_value = inp->sctp_ep.sctp_default_cc_module;
 1809                                         SCTP_INP_RUNLOCK(inp);
 1810                                 } else {
 1811                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1812                                         error = EINVAL;
 1813                                 }
 1814                         }
 1815                         if (error == 0) {
 1816                                 *optsize = sizeof(struct sctp_assoc_value);
 1817                         }
 1818                         break;
 1819                 }
 1820         case SCTP_CC_OPTION:
 1821                 {
 1822                         struct sctp_cc_option *cc_opt;
 1823 
 1824                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, *optsize);
 1825                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
 1826                         if (stcb == NULL) {
 1827                                 error = EINVAL;
 1828                         } else {
 1829                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
 1830                                         error = ENOTSUP;
 1831                                 } else {
 1832                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 0, cc_opt);
 1833                                         *optsize = sizeof(struct sctp_cc_option);
 1834                                 }
 1835                                 SCTP_TCB_UNLOCK(stcb);
 1836                         }
 1837                         break;
 1838                 }
 1839         case SCTP_PLUGGABLE_SS:
 1840                 {
 1841                         struct sctp_assoc_value *av;
 1842 
 1843                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 1844                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 1845                         if (stcb) {
 1846                                 av->assoc_value = stcb->asoc.stream_scheduling_module;
 1847                                 SCTP_TCB_UNLOCK(stcb);
 1848                         } else {
 1849                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 1850                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 1851                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 1852                                         SCTP_INP_RLOCK(inp);
 1853                                         av->assoc_value = inp->sctp_ep.sctp_default_ss_module;
 1854                                         SCTP_INP_RUNLOCK(inp);
 1855                                 } else {
 1856                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1857                                         error = EINVAL;
 1858                                 }
 1859                         }
 1860                         if (error == 0) {
 1861                                 *optsize = sizeof(struct sctp_assoc_value);
 1862                         }
 1863                         break;
 1864                 }
 1865         case SCTP_SS_VALUE:
 1866                 {
 1867                         struct sctp_stream_value *av;
 1868 
 1869                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, *optsize);
 1870                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 1871                         if (stcb) {
 1872                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
 1873                                     (stcb->asoc.ss_functions.sctp_ss_get_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
 1874                                     &av->stream_value) < 0)) {
 1875                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1876                                         error = EINVAL;
 1877                                 } else {
 1878                                         *optsize = sizeof(struct sctp_stream_value);
 1879                                 }
 1880                                 SCTP_TCB_UNLOCK(stcb);
 1881                         } else {
 1882                                 /*
 1883                                  * Can't get stream value without
 1884                                  * association
 1885                                  */
 1886                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1887                                 error = EINVAL;
 1888                         }
 1889                         break;
 1890                 }
 1891         case SCTP_GET_ADDR_LEN:
 1892                 {
 1893                         struct sctp_assoc_value *av;
 1894 
 1895                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 1896                         error = EINVAL;
 1897 #ifdef INET
 1898                         if (av->assoc_value == AF_INET) {
 1899                                 av->assoc_value = sizeof(struct sockaddr_in);
 1900                                 error = 0;
 1901                         }
 1902 #endif
 1903 #ifdef INET6
 1904                         if (av->assoc_value == AF_INET6) {
 1905                                 av->assoc_value = sizeof(struct sockaddr_in6);
 1906                                 error = 0;
 1907                         }
 1908 #endif
 1909                         if (error) {
 1910                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 1911                         } else {
 1912                                 *optsize = sizeof(struct sctp_assoc_value);
 1913                         }
 1914                         break;
 1915                 }
 1916         case SCTP_GET_ASSOC_NUMBER:
 1917                 {
 1918                         uint32_t *value, cnt;
 1919 
 1920                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
 1921                         cnt = 0;
 1922                         SCTP_INP_RLOCK(inp);
 1923                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 1924                                 cnt++;
 1925                         }
 1926                         SCTP_INP_RUNLOCK(inp);
 1927                         *value = cnt;
 1928                         *optsize = sizeof(uint32_t);
 1929                         break;
 1930                 }
 1931         case SCTP_GET_ASSOC_ID_LIST:
 1932                 {
 1933                         struct sctp_assoc_ids *ids;
 1934                         unsigned int at, limit;
 1935 
 1936                         SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize);
 1937                         at = 0;
 1938                         limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t);
 1939                         SCTP_INP_RLOCK(inp);
 1940                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 1941                                 if (at < limit) {
 1942                                         ids->gaids_assoc_id[at++] = sctp_get_associd(stcb);
 1943                                 } else {
 1944                                         error = EINVAL;
 1945                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 1946                                         break;
 1947                                 }
 1948                         }
 1949                         SCTP_INP_RUNLOCK(inp);
 1950                         if (error == 0) {
 1951                                 ids->gaids_number_of_ids = at;
 1952                                 *optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t));
 1953                         }
 1954                         break;
 1955                 }
 1956         case SCTP_CONTEXT:
 1957                 {
 1958                         struct sctp_assoc_value *av;
 1959 
 1960                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 1961                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 1962 
 1963                         if (stcb) {
 1964                                 av->assoc_value = stcb->asoc.context;
 1965                                 SCTP_TCB_UNLOCK(stcb);
 1966                         } else {
 1967                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 1968                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 1969                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 1970                                         SCTP_INP_RLOCK(inp);
 1971                                         av->assoc_value = inp->sctp_context;
 1972                                         SCTP_INP_RUNLOCK(inp);
 1973                                 } else {
 1974                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 1975                                         error = EINVAL;
 1976                                 }
 1977                         }
 1978                         if (error == 0) {
 1979                                 *optsize = sizeof(struct sctp_assoc_value);
 1980                         }
 1981                         break;
 1982                 }
 1983         case SCTP_VRF_ID:
 1984                 {
 1985                         uint32_t *default_vrfid;
 1986 
 1987                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize);
 1988                         *default_vrfid = inp->def_vrf_id;
 1989                         *optsize = sizeof(uint32_t);
 1990                         break;
 1991                 }
 1992         case SCTP_GET_ASOC_VRF:
 1993                 {
 1994                         struct sctp_assoc_value *id;
 1995 
 1996                         SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize);
 1997                         SCTP_FIND_STCB(inp, stcb, id->assoc_id);
 1998                         if (stcb == NULL) {
 1999                                 error = EINVAL;
 2000                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 2001                         } else {
 2002                                 id->assoc_value = stcb->asoc.vrf_id;
 2003                                 *optsize = sizeof(struct sctp_assoc_value);
 2004                         }
 2005                         break;
 2006                 }
 2007         case SCTP_GET_VRF_IDS:
 2008                 {
 2009                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 2010                         error = EOPNOTSUPP;
 2011                         break;
 2012                 }
 2013         case SCTP_GET_NONCE_VALUES:
 2014                 {
 2015                         struct sctp_get_nonce_values *gnv;
 2016 
 2017                         SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize);
 2018                         SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id);
 2019 
 2020                         if (stcb) {
 2021                                 gnv->gn_peers_tag = stcb->asoc.peer_vtag;
 2022                                 gnv->gn_local_tag = stcb->asoc.my_vtag;
 2023                                 SCTP_TCB_UNLOCK(stcb);
 2024                                 *optsize = sizeof(struct sctp_get_nonce_values);
 2025                         } else {
 2026                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 2027                                 error = ENOTCONN;
 2028                         }
 2029                         break;
 2030                 }
 2031         case SCTP_DELAYED_SACK:
 2032                 {
 2033                         struct sctp_sack_info *sack;
 2034 
 2035                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize);
 2036                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
 2037                         if (stcb) {
 2038                                 sack->sack_delay = stcb->asoc.delayed_ack;
 2039                                 sack->sack_freq = stcb->asoc.sack_freq;
 2040                                 SCTP_TCB_UNLOCK(stcb);
 2041                         } else {
 2042                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 2043                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 2044                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC)) {
 2045                                         SCTP_INP_RLOCK(inp);
 2046                                         sack->sack_delay = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]);
 2047                                         sack->sack_freq = inp->sctp_ep.sctp_sack_freq;
 2048                                         SCTP_INP_RUNLOCK(inp);
 2049                                 } else {
 2050                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2051                                         error = EINVAL;
 2052                                 }
 2053                         }
 2054                         if (error == 0) {
 2055                                 *optsize = sizeof(struct sctp_sack_info);
 2056                         }
 2057                         break;
 2058                 }
 2059         case SCTP_GET_SNDBUF_USE:
 2060                 {
 2061                         struct sctp_sockstat *ss;
 2062 
 2063                         SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize);
 2064                         SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id);
 2065 
 2066                         if (stcb) {
 2067                                 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size;
 2068                                 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue +
 2069                                     stcb->asoc.size_on_all_streams);
 2070                                 SCTP_TCB_UNLOCK(stcb);
 2071                                 *optsize = sizeof(struct sctp_sockstat);
 2072                         } else {
 2073                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 2074                                 error = ENOTCONN;
 2075                         }
 2076                         break;
 2077                 }
 2078         case SCTP_MAX_BURST:
 2079                 {
 2080                         struct sctp_assoc_value *av;
 2081 
 2082                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 2083                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 2084 
 2085                         if (stcb) {
 2086                                 av->assoc_value = stcb->asoc.max_burst;
 2087                                 SCTP_TCB_UNLOCK(stcb);
 2088                         } else {
 2089                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 2090                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 2091                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 2092                                         SCTP_INP_RLOCK(inp);
 2093                                         av->assoc_value = inp->sctp_ep.max_burst;
 2094                                         SCTP_INP_RUNLOCK(inp);
 2095                                 } else {
 2096                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2097                                         error = EINVAL;
 2098                                 }
 2099                         }
 2100                         if (error == 0) {
 2101                                 *optsize = sizeof(struct sctp_assoc_value);
 2102                         }
 2103                         break;
 2104                 }
 2105         case SCTP_MAXSEG:
 2106                 {
 2107                         struct sctp_assoc_value *av;
 2108                         int ovh;
 2109 
 2110                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 2111                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 2112 
 2113                         if (stcb) {
 2114                                 av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc);
 2115                                 SCTP_TCB_UNLOCK(stcb);
 2116                         } else {
 2117                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 2118                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 2119                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 2120                                         SCTP_INP_RLOCK(inp);
 2121                                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 2122                                                 ovh = SCTP_MED_OVERHEAD;
 2123                                         } else {
 2124                                                 ovh = SCTP_MED_V4_OVERHEAD;
 2125                                         }
 2126                                         if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT)
 2127                                                 av->assoc_value = 0;
 2128                                         else
 2129                                                 av->assoc_value = inp->sctp_frag_point - ovh;
 2130                                         SCTP_INP_RUNLOCK(inp);
 2131                                 } else {
 2132                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2133                                         error = EINVAL;
 2134                                 }
 2135                         }
 2136                         if (error == 0) {
 2137                                 *optsize = sizeof(struct sctp_assoc_value);
 2138                         }
 2139                         break;
 2140                 }
 2141         case SCTP_GET_STAT_LOG:
 2142                 error = sctp_fill_stat_log(optval, optsize);
 2143                 break;
 2144         case SCTP_EVENTS:
 2145                 {
 2146                         struct sctp_event_subscribe *events;
 2147 
 2148                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize);
 2149                         memset(events, 0, sizeof(struct sctp_event_subscribe));
 2150                         SCTP_INP_RLOCK(inp);
 2151                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT))
 2152                                 events->sctp_data_io_event = 1;
 2153 
 2154                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT))
 2155                                 events->sctp_association_event = 1;
 2156 
 2157                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT))
 2158                                 events->sctp_address_event = 1;
 2159 
 2160                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT))
 2161                                 events->sctp_send_failure_event = 1;
 2162 
 2163                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR))
 2164                                 events->sctp_peer_error_event = 1;
 2165 
 2166                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT))
 2167                                 events->sctp_shutdown_event = 1;
 2168 
 2169                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT))
 2170                                 events->sctp_partial_delivery_event = 1;
 2171 
 2172                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT))
 2173                                 events->sctp_adaptation_layer_event = 1;
 2174 
 2175                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT))
 2176                                 events->sctp_authentication_event = 1;
 2177 
 2178                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT))
 2179                                 events->sctp_sender_dry_event = 1;
 2180 
 2181                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT))
 2182                                 events->sctp_stream_reset_event = 1;
 2183                         SCTP_INP_RUNLOCK(inp);
 2184                         *optsize = sizeof(struct sctp_event_subscribe);
 2185                         break;
 2186                 }
 2187         case SCTP_ADAPTATION_LAYER:
 2188                 {
 2189                         uint32_t *value;
 2190 
 2191                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
 2192 
 2193                         SCTP_INP_RLOCK(inp);
 2194                         *value = inp->sctp_ep.adaptation_layer_indicator;
 2195                         SCTP_INP_RUNLOCK(inp);
 2196                         *optsize = sizeof(uint32_t);
 2197                         break;
 2198                 }
 2199         case SCTP_SET_INITIAL_DBG_SEQ:
 2200                 {
 2201                         uint32_t *value;
 2202 
 2203                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
 2204                         SCTP_INP_RLOCK(inp);
 2205                         *value = inp->sctp_ep.initial_sequence_debug;
 2206                         SCTP_INP_RUNLOCK(inp);
 2207                         *optsize = sizeof(uint32_t);
 2208                         break;
 2209                 }
 2210         case SCTP_GET_LOCAL_ADDR_SIZE:
 2211                 {
 2212                         uint32_t *value;
 2213 
 2214                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
 2215                         SCTP_INP_RLOCK(inp);
 2216                         *value = sctp_count_max_addresses(inp);
 2217                         SCTP_INP_RUNLOCK(inp);
 2218                         *optsize = sizeof(uint32_t);
 2219                         break;
 2220                 }
 2221         case SCTP_GET_REMOTE_ADDR_SIZE:
 2222                 {
 2223                         uint32_t *value;
 2224                         size_t size;
 2225                         struct sctp_nets *net;
 2226 
 2227                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
 2228                         /* FIXME MT: change to sctp_assoc_value? */
 2229                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value);
 2230 
 2231                         if (stcb) {
 2232                                 size = 0;
 2233                                 /* Count the sizes */
 2234                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 2235                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
 2236                                                 size += sizeof(struct sockaddr_in6);
 2237                                         } else {
 2238                                                 switch (((struct sockaddr *)&net->ro._l_addr)->sa_family) {
 2239 #ifdef INET
 2240                                                 case AF_INET:
 2241                                                         size += sizeof(struct sockaddr_in);
 2242                                                         break;
 2243 #endif
 2244 #ifdef INET6
 2245                                                 case AF_INET6:
 2246                                                         size += sizeof(struct sockaddr_in6);
 2247                                                         break;
 2248 #endif
 2249                                                 default:
 2250                                                         break;
 2251                                                 }
 2252                                         }
 2253                                 }
 2254                                 SCTP_TCB_UNLOCK(stcb);
 2255                                 *value = (uint32_t) size;
 2256                                 *optsize = sizeof(uint32_t);
 2257                         } else {
 2258                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 2259                                 error = ENOTCONN;
 2260                         }
 2261                         break;
 2262                 }
 2263         case SCTP_GET_PEER_ADDRESSES:
 2264                 /*
 2265                  * Get the address information, an array is passed in to
 2266                  * fill up we pack it.
 2267                  */
 2268                 {
 2269                         size_t cpsz, left;
 2270                         struct sockaddr_storage *sas;
 2271                         struct sctp_nets *net;
 2272                         struct sctp_getaddresses *saddr;
 2273 
 2274                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
 2275                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
 2276 
 2277                         if (stcb) {
 2278                                 left = (*optsize) - sizeof(struct sctp_getaddresses);
 2279                                 *optsize = sizeof(struct sctp_getaddresses);
 2280                                 sas = (struct sockaddr_storage *)&saddr->addr[0];
 2281 
 2282                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 2283                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
 2284                                                 cpsz = sizeof(struct sockaddr_in6);
 2285                                         } else {
 2286                                                 switch (((struct sockaddr *)&net->ro._l_addr)->sa_family) {
 2287 #ifdef INET
 2288                                                 case AF_INET:
 2289                                                         cpsz = sizeof(struct sockaddr_in);
 2290                                                         break;
 2291 #endif
 2292 #ifdef INET6
 2293                                                 case AF_INET6:
 2294                                                         cpsz = sizeof(struct sockaddr_in6);
 2295                                                         break;
 2296 #endif
 2297                                                 default:
 2298                                                         cpsz = 0;
 2299                                                         break;
 2300                                                 }
 2301                                         }
 2302                                         if (cpsz == 0) {
 2303                                                 break;
 2304                                         }
 2305                                         if (left < cpsz) {
 2306                                                 /* not enough room. */
 2307                                                 break;
 2308                                         }
 2309 #if defined(INET) && defined(INET6)
 2310                                         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) &&
 2311                                             (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET)) {
 2312                                                 /* Must map the address */
 2313                                                 in6_sin_2_v4mapsin6((struct sockaddr_in *)&net->ro._l_addr,
 2314                                                     (struct sockaddr_in6 *)sas);
 2315                                         } else {
 2316 #endif
 2317                                                 memcpy(sas, &net->ro._l_addr, cpsz);
 2318 #if defined(INET) && defined(INET6)
 2319                                         }
 2320 #endif
 2321                                         ((struct sockaddr_in *)sas)->sin_port = stcb->rport;
 2322 
 2323                                         sas = (struct sockaddr_storage *)((caddr_t)sas + cpsz);
 2324                                         left -= cpsz;
 2325                                         *optsize += cpsz;
 2326                                 }
 2327                                 SCTP_TCB_UNLOCK(stcb);
 2328                         } else {
 2329                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 2330                                 error = ENOENT;
 2331                         }
 2332                         break;
 2333                 }
 2334         case SCTP_GET_LOCAL_ADDRESSES:
 2335                 {
 2336                         size_t limit, actual;
 2337                         struct sockaddr_storage *sas;
 2338                         struct sctp_getaddresses *saddr;
 2339 
 2340                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
 2341                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
 2342 
 2343                         sas = (struct sockaddr_storage *)&saddr->addr[0];
 2344                         limit = *optsize - sizeof(sctp_assoc_t);
 2345                         actual = sctp_fill_up_addresses(inp, stcb, limit, sas);
 2346                         if (stcb) {
 2347                                 SCTP_TCB_UNLOCK(stcb);
 2348                         }
 2349                         *optsize = sizeof(struct sockaddr_storage) + actual;
 2350                         break;
 2351                 }
 2352         case SCTP_PEER_ADDR_PARAMS:
 2353                 {
 2354                         struct sctp_paddrparams *paddrp;
 2355                         struct sctp_nets *net;
 2356 
 2357                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize);
 2358                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
 2359 
 2360                         net = NULL;
 2361                         if (stcb) {
 2362                                 net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address);
 2363                         } else {
 2364                                 /*
 2365                                  * We increment here since
 2366                                  * sctp_findassociation_ep_addr() wil do a
 2367                                  * decrement if it finds the stcb as long as
 2368                                  * the locked tcb (last argument) is NOT a
 2369                                  * TCB.. aka NULL.
 2370                                  */
 2371                                 SCTP_INP_INCR_REF(inp);
 2372                                 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&paddrp->spp_address, &net, NULL, NULL);
 2373                                 if (stcb == NULL) {
 2374                                         SCTP_INP_DECR_REF(inp);
 2375                                 }
 2376                         }
 2377                         if (stcb && (net == NULL)) {
 2378                                 struct sockaddr *sa;
 2379 
 2380                                 sa = (struct sockaddr *)&paddrp->spp_address;
 2381 #ifdef INET
 2382                                 if (sa->sa_family == AF_INET) {
 2383                                         struct sockaddr_in *sin;
 2384 
 2385                                         sin = (struct sockaddr_in *)sa;
 2386                                         if (sin->sin_addr.s_addr) {
 2387                                                 error = EINVAL;
 2388                                                 SCTP_TCB_UNLOCK(stcb);
 2389                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 2390                                                 break;
 2391                                         }
 2392                                 } else
 2393 #endif
 2394 #ifdef INET6
 2395                                 if (sa->sa_family == AF_INET6) {
 2396                                         struct sockaddr_in6 *sin6;
 2397 
 2398                                         sin6 = (struct sockaddr_in6 *)sa;
 2399                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
 2400                                                 error = EINVAL;
 2401                                                 SCTP_TCB_UNLOCK(stcb);
 2402                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 2403                                                 break;
 2404                                         }
 2405                                 } else
 2406 #endif
 2407                                 {
 2408                                         error = EAFNOSUPPORT;
 2409                                         SCTP_TCB_UNLOCK(stcb);
 2410                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 2411                                         break;
 2412                                 }
 2413                         }
 2414                         if (stcb) {
 2415                                 /* Applies to the specific association */
 2416                                 paddrp->spp_flags = 0;
 2417                                 if (net) {
 2418                                         int ovh;
 2419 
 2420                                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 2421                                                 ovh = SCTP_MED_OVERHEAD;
 2422                                         } else {
 2423                                                 ovh = SCTP_MED_V4_OVERHEAD;
 2424                                         }
 2425 
 2426                                         paddrp->spp_hbinterval = net->heart_beat_delay;
 2427                                         paddrp->spp_pathmaxrxt = net->failure_threshold;
 2428                                         paddrp->spp_pathmtu = net->mtu - ovh;
 2429                                         /* get flags for HB */
 2430                                         if (net->dest_state & SCTP_ADDR_NOHB) {
 2431                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
 2432                                         } else {
 2433                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
 2434                                         }
 2435                                         /* get flags for PMTU */
 2436                                         if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
 2437                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
 2438                                         } else {
 2439                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
 2440                                         }
 2441                                         if (net->dscp & 0x01) {
 2442                                                 paddrp->spp_dscp = net->dscp & 0xfc;
 2443                                                 paddrp->spp_flags |= SPP_DSCP;
 2444                                         }
 2445 #ifdef INET6
 2446                                         if ((net->ro._l_addr.sa.sa_family == AF_INET6) &&
 2447                                             (net->flowlabel & 0x80000000)) {
 2448                                                 paddrp->spp_ipv6_flowlabel = net->flowlabel & 0x000fffff;
 2449                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
 2450                                         }
 2451 #endif
 2452                                 } else {
 2453                                         /*
 2454                                          * No destination so return default
 2455                                          * value
 2456                                          */
 2457                                         paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure;
 2458                                         paddrp->spp_pathmtu = sctp_get_frag_point(stcb, &stcb->asoc);
 2459                                         if (stcb->asoc.default_dscp & 0x01) {
 2460                                                 paddrp->spp_dscp = stcb->asoc.default_dscp & 0xfc;
 2461                                                 paddrp->spp_flags |= SPP_DSCP;
 2462                                         }
 2463 #ifdef INET6
 2464                                         if (stcb->asoc.default_flowlabel & 0x80000000) {
 2465                                                 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel & 0x000fffff;
 2466                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
 2467                                         }
 2468 #endif
 2469                                         /* default settings should be these */
 2470                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
 2471                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
 2472                                         } else {
 2473                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
 2474                                         }
 2475                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
 2476                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
 2477                                         } else {
 2478                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
 2479                                         }
 2480                                         paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay;
 2481                                 }
 2482                                 paddrp->spp_assoc_id = sctp_get_associd(stcb);
 2483                                 SCTP_TCB_UNLOCK(stcb);
 2484                         } else {
 2485                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 2486                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 2487                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
 2488                                         /* Use endpoint defaults */
 2489                                         SCTP_INP_RLOCK(inp);
 2490                                         paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure;
 2491                                         paddrp->spp_hbinterval = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]);
 2492                                         paddrp->spp_assoc_id = SCTP_FUTURE_ASSOC;
 2493                                         /* get inp's default */
 2494                                         if (inp->sctp_ep.default_dscp & 0x01) {
 2495                                                 paddrp->spp_dscp = inp->sctp_ep.default_dscp & 0xfc;
 2496                                                 paddrp->spp_flags |= SPP_DSCP;
 2497                                         }
 2498 #ifdef INET6
 2499                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
 2500                                             (inp->sctp_ep.default_flowlabel & 0x80000000)) {
 2501                                                 paddrp->spp_ipv6_flowlabel = inp->sctp_ep.default_flowlabel & 0x000fffff;
 2502                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
 2503                                         }
 2504 #endif
 2505                                         /* can't return this */
 2506                                         paddrp->spp_pathmtu = 0;
 2507 
 2508                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
 2509                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
 2510                                         } else {
 2511                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
 2512                                         }
 2513                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
 2514                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
 2515                                         } else {
 2516                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
 2517                                         }
 2518                                         SCTP_INP_RUNLOCK(inp);
 2519                                 } else {
 2520                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2521                                         error = EINVAL;
 2522                                 }
 2523                         }
 2524                         if (error == 0) {
 2525                                 *optsize = sizeof(struct sctp_paddrparams);
 2526                         }
 2527                         break;
 2528                 }
 2529         case SCTP_GET_PEER_ADDR_INFO:
 2530                 {
 2531                         struct sctp_paddrinfo *paddri;
 2532                         struct sctp_nets *net;
 2533 
 2534                         SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize);
 2535                         SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id);
 2536 
 2537                         net = NULL;
 2538                         if (stcb) {
 2539                                 net = sctp_findnet(stcb, (struct sockaddr *)&paddri->spinfo_address);
 2540                         } else {
 2541                                 /*
 2542                                  * We increment here since
 2543                                  * sctp_findassociation_ep_addr() wil do a
 2544                                  * decrement if it finds the stcb as long as
 2545                                  * the locked tcb (last argument) is NOT a
 2546                                  * TCB.. aka NULL.
 2547                                  */
 2548                                 SCTP_INP_INCR_REF(inp);
 2549                                 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&paddri->spinfo_address, &net, NULL, NULL);
 2550                                 if (stcb == NULL) {
 2551                                         SCTP_INP_DECR_REF(inp);
 2552                                 }
 2553                         }
 2554 
 2555                         if ((stcb) && (net)) {
 2556                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
 2557                                         /* It's unconfirmed */
 2558                                         paddri->spinfo_state = SCTP_UNCONFIRMED;
 2559                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
 2560                                         /* It's active */
 2561                                         paddri->spinfo_state = SCTP_ACTIVE;
 2562                                 } else {
 2563                                         /* It's inactive */
 2564                                         paddri->spinfo_state = SCTP_INACTIVE;
 2565                                 }
 2566                                 paddri->spinfo_cwnd = net->cwnd;
 2567                                 paddri->spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
 2568                                 paddri->spinfo_rto = net->RTO;
 2569                                 paddri->spinfo_assoc_id = sctp_get_associd(stcb);
 2570                                 paddri->spinfo_mtu = net->mtu;
 2571                                 SCTP_TCB_UNLOCK(stcb);
 2572                                 *optsize = sizeof(struct sctp_paddrinfo);
 2573                         } else {
 2574                                 if (stcb) {
 2575                                         SCTP_TCB_UNLOCK(stcb);
 2576                                 }
 2577                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 2578                                 error = ENOENT;
 2579                         }
 2580                         break;
 2581                 }
 2582         case SCTP_PCB_STATUS:
 2583                 {
 2584                         struct sctp_pcbinfo *spcb;
 2585 
 2586                         SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize);
 2587                         sctp_fill_pcbinfo(spcb);
 2588                         *optsize = sizeof(struct sctp_pcbinfo);
 2589                         break;
 2590                 }
 2591         case SCTP_STATUS:
 2592                 {
 2593                         struct sctp_nets *net;
 2594                         struct sctp_status *sstat;
 2595 
 2596                         SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize);
 2597                         SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id);
 2598 
 2599                         if (stcb == NULL) {
 2600                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2601                                 error = EINVAL;
 2602                                 break;
 2603                         }
 2604                         /*
 2605                          * I think passing the state is fine since
 2606                          * sctp_constants.h will be available to the user
 2607                          * land.
 2608                          */
 2609                         sstat->sstat_state = stcb->asoc.state;
 2610                         sstat->sstat_assoc_id = sctp_get_associd(stcb);
 2611                         sstat->sstat_rwnd = stcb->asoc.peers_rwnd;
 2612                         sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt;
 2613                         /*
 2614                          * We can't include chunks that have been passed to
 2615                          * the socket layer. Only things in queue.
 2616                          */
 2617                         sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue +
 2618                             stcb->asoc.cnt_on_all_streams);
 2619 
 2620 
 2621                         sstat->sstat_instrms = stcb->asoc.streamincnt;
 2622                         sstat->sstat_outstrms = stcb->asoc.streamoutcnt;
 2623                         sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc);
 2624                         memcpy(&sstat->sstat_primary.spinfo_address,
 2625                             &stcb->asoc.primary_destination->ro._l_addr,
 2626                             ((struct sockaddr *)(&stcb->asoc.primary_destination->ro._l_addr))->sa_len);
 2627                         net = stcb->asoc.primary_destination;
 2628                         ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport;
 2629                         /*
 2630                          * Again the user can get info from sctp_constants.h
 2631                          * for what the state of the network is.
 2632                          */
 2633                         if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
 2634                                 /* It's unconfirmed */
 2635                                 sstat->sstat_primary.spinfo_state = SCTP_UNCONFIRMED;
 2636                         } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
 2637                                 /* It's active */
 2638                                 sstat->sstat_primary.spinfo_state = SCTP_ACTIVE;
 2639                         } else {
 2640                                 /* It's inactive */
 2641                                 sstat->sstat_primary.spinfo_state = SCTP_INACTIVE;
 2642                         }
 2643                         sstat->sstat_primary.spinfo_cwnd = net->cwnd;
 2644                         sstat->sstat_primary.spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
 2645                         sstat->sstat_primary.spinfo_rto = net->RTO;
 2646                         sstat->sstat_primary.spinfo_mtu = net->mtu;
 2647                         sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb);
 2648                         SCTP_TCB_UNLOCK(stcb);
 2649                         *optsize = sizeof(struct sctp_status);
 2650                         break;
 2651                 }
 2652         case SCTP_RTOINFO:
 2653                 {
 2654                         struct sctp_rtoinfo *srto;
 2655 
 2656                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize);
 2657                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
 2658 
 2659                         if (stcb) {
 2660                                 srto->srto_initial = stcb->asoc.initial_rto;
 2661                                 srto->srto_max = stcb->asoc.maxrto;
 2662                                 srto->srto_min = stcb->asoc.minrto;
 2663                                 SCTP_TCB_UNLOCK(stcb);
 2664                         } else {
 2665                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 2666                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 2667                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
 2668                                         SCTP_INP_RLOCK(inp);
 2669                                         srto->srto_initial = inp->sctp_ep.initial_rto;
 2670                                         srto->srto_max = inp->sctp_ep.sctp_maxrto;
 2671                                         srto->srto_min = inp->sctp_ep.sctp_minrto;
 2672                                         SCTP_INP_RUNLOCK(inp);
 2673                                 } else {
 2674                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2675                                         error = EINVAL;
 2676                                 }
 2677                         }
 2678                         if (error == 0) {
 2679                                 *optsize = sizeof(struct sctp_rtoinfo);
 2680                         }
 2681                         break;
 2682                 }
 2683         case SCTP_TIMEOUTS:
 2684                 {
 2685                         struct sctp_timeouts *stimo;
 2686 
 2687                         SCTP_CHECK_AND_CAST(stimo, optval, struct sctp_timeouts, *optsize);
 2688                         SCTP_FIND_STCB(inp, stcb, stimo->stimo_assoc_id);
 2689 
 2690                         if (stcb) {
 2691                                 stimo->stimo_init = stcb->asoc.timoinit;
 2692                                 stimo->stimo_data = stcb->asoc.timodata;
 2693                                 stimo->stimo_sack = stcb->asoc.timosack;
 2694                                 stimo->stimo_shutdown = stcb->asoc.timoshutdown;
 2695                                 stimo->stimo_heartbeat = stcb->asoc.timoheartbeat;
 2696                                 stimo->stimo_cookie = stcb->asoc.timocookie;
 2697                                 stimo->stimo_shutdownack = stcb->asoc.timoshutdownack;
 2698                                 SCTP_TCB_UNLOCK(stcb);
 2699                                 *optsize = sizeof(struct sctp_timeouts);
 2700                         } else {
 2701                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2702                                 error = EINVAL;
 2703                         }
 2704                         break;
 2705                 }
 2706         case SCTP_ASSOCINFO:
 2707                 {
 2708                         struct sctp_assocparams *sasoc;
 2709 
 2710                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize);
 2711                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
 2712 
 2713                         if (stcb) {
 2714                                 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(stcb->asoc.cookie_life);
 2715                                 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times;
 2716                                 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
 2717                                 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd;
 2718                                 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd;
 2719                                 SCTP_TCB_UNLOCK(stcb);
 2720                         } else {
 2721                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 2722                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 2723                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
 2724                                         SCTP_INP_RLOCK(inp);
 2725                                         sasoc->sasoc_cookie_life = TICKS_TO_MSEC(inp->sctp_ep.def_cookie_life);
 2726                                         sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times;
 2727                                         sasoc->sasoc_number_peer_destinations = 0;
 2728                                         sasoc->sasoc_peer_rwnd = 0;
 2729                                         sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv);
 2730                                         SCTP_INP_RUNLOCK(inp);
 2731                                 } else {
 2732                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2733                                         error = EINVAL;
 2734                                 }
 2735                         }
 2736                         if (error == 0) {
 2737                                 *optsize = sizeof(struct sctp_assocparams);
 2738                         }
 2739                         break;
 2740                 }
 2741         case SCTP_DEFAULT_SEND_PARAM:
 2742                 {
 2743                         struct sctp_sndrcvinfo *s_info;
 2744 
 2745                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize);
 2746                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
 2747 
 2748                         if (stcb) {
 2749                                 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send));
 2750                                 SCTP_TCB_UNLOCK(stcb);
 2751                         } else {
 2752                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 2753                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 2754                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC)) {
 2755                                         SCTP_INP_RLOCK(inp);
 2756                                         memcpy(s_info, &inp->def_send, sizeof(inp->def_send));
 2757                                         SCTP_INP_RUNLOCK(inp);
 2758                                 } else {
 2759                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2760                                         error = EINVAL;
 2761                                 }
 2762                         }
 2763                         if (error == 0) {
 2764                                 *optsize = sizeof(struct sctp_sndrcvinfo);
 2765                         }
 2766                         break;
 2767                 }
 2768         case SCTP_INITMSG:
 2769                 {
 2770                         struct sctp_initmsg *sinit;
 2771 
 2772                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize);
 2773                         SCTP_INP_RLOCK(inp);
 2774                         sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count;
 2775                         sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome;
 2776                         sinit->sinit_max_attempts = inp->sctp_ep.max_init_times;
 2777                         sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max;
 2778                         SCTP_INP_RUNLOCK(inp);
 2779                         *optsize = sizeof(struct sctp_initmsg);
 2780                         break;
 2781                 }
 2782         case SCTP_PRIMARY_ADDR:
 2783                 /* we allow a "get" operation on this */
 2784                 {
 2785                         struct sctp_setprim *ssp;
 2786 
 2787                         SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize);
 2788                         SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id);
 2789 
 2790                         if (stcb) {
 2791                                 /* simply copy out the sockaddr_storage... */
 2792                                 int len;
 2793 
 2794                                 len = *optsize;
 2795                                 if (len > stcb->asoc.primary_destination->ro._l_addr.sa.sa_len)
 2796                                         len = stcb->asoc.primary_destination->ro._l_addr.sa.sa_len;
 2797 
 2798                                 memcpy(&ssp->ssp_addr,
 2799                                     &stcb->asoc.primary_destination->ro._l_addr,
 2800                                     len);
 2801                                 SCTP_TCB_UNLOCK(stcb);
 2802                                 *optsize = sizeof(struct sctp_setprim);
 2803                         } else {
 2804                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2805                                 error = EINVAL;
 2806                         }
 2807                         break;
 2808                 }
 2809         case SCTP_HMAC_IDENT:
 2810                 {
 2811                         struct sctp_hmacalgo *shmac;
 2812                         sctp_hmaclist_t *hmaclist;
 2813                         uint32_t size;
 2814                         int i;
 2815 
 2816                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize);
 2817 
 2818                         SCTP_INP_RLOCK(inp);
 2819                         hmaclist = inp->sctp_ep.local_hmacs;
 2820                         if (hmaclist == NULL) {
 2821                                 /* no HMACs to return */
 2822                                 *optsize = sizeof(*shmac);
 2823                                 SCTP_INP_RUNLOCK(inp);
 2824                                 break;
 2825                         }
 2826                         /* is there room for all of the hmac ids? */
 2827                         size = sizeof(*shmac) + (hmaclist->num_algo *
 2828                             sizeof(shmac->shmac_idents[0]));
 2829                         if ((size_t)(*optsize) < size) {
 2830                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2831                                 error = EINVAL;
 2832                                 SCTP_INP_RUNLOCK(inp);
 2833                                 break;
 2834                         }
 2835                         /* copy in the list */
 2836                         shmac->shmac_number_of_idents = hmaclist->num_algo;
 2837                         for (i = 0; i < hmaclist->num_algo; i++) {
 2838                                 shmac->shmac_idents[i] = hmaclist->hmac[i];
 2839                         }
 2840                         SCTP_INP_RUNLOCK(inp);
 2841                         *optsize = size;
 2842                         break;
 2843                 }
 2844         case SCTP_AUTH_ACTIVE_KEY:
 2845                 {
 2846                         struct sctp_authkeyid *scact;
 2847 
 2848                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize);
 2849                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
 2850 
 2851                         if (stcb) {
 2852                                 /* get the active key on the assoc */
 2853                                 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid;
 2854                                 SCTP_TCB_UNLOCK(stcb);
 2855                         } else {
 2856                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 2857                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 2858                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC)) {
 2859                                         /* get the endpoint active key */
 2860                                         SCTP_INP_RLOCK(inp);
 2861                                         scact->scact_keynumber = inp->sctp_ep.default_keyid;
 2862                                         SCTP_INP_RUNLOCK(inp);
 2863                                 } else {
 2864                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2865                                         error = EINVAL;
 2866                                 }
 2867                         }
 2868                         if (error == 0) {
 2869                                 *optsize = sizeof(struct sctp_authkeyid);
 2870                         }
 2871                         break;
 2872                 }
 2873         case SCTP_LOCAL_AUTH_CHUNKS:
 2874                 {
 2875                         struct sctp_authchunks *sac;
 2876                         sctp_auth_chklist_t *chklist = NULL;
 2877                         size_t size = 0;
 2878 
 2879                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
 2880                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
 2881 
 2882                         if (stcb) {
 2883                                 /* get off the assoc */
 2884                                 chklist = stcb->asoc.local_auth_chunks;
 2885                                 /* is there enough space? */
 2886                                 size = sctp_auth_get_chklist_size(chklist);
 2887                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
 2888                                         error = EINVAL;
 2889                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 2890                                 } else {
 2891                                         /* copy in the chunks */
 2892                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
 2893                                         sac->gauth_number_of_chunks = (uint32_t) size;
 2894                                         *optsize = sizeof(struct sctp_authchunks) + size;
 2895                                 }
 2896                                 SCTP_TCB_UNLOCK(stcb);
 2897                         } else {
 2898                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 2899                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 2900                                     (sac->gauth_assoc_id == SCTP_FUTURE_ASSOC)) {
 2901                                         /* get off the endpoint */
 2902                                         SCTP_INP_RLOCK(inp);
 2903                                         chklist = inp->sctp_ep.local_auth_chunks;
 2904                                         /* is there enough space? */
 2905                                         size = sctp_auth_get_chklist_size(chklist);
 2906                                         if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
 2907                                                 error = EINVAL;
 2908                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 2909                                         } else {
 2910                                                 /* copy in the chunks */
 2911                                                 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
 2912                                                 sac->gauth_number_of_chunks = (uint32_t) size;
 2913                                                 *optsize = sizeof(struct sctp_authchunks) + size;
 2914                                         }
 2915                                         SCTP_INP_RUNLOCK(inp);
 2916                                 } else {
 2917                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 2918                                         error = EINVAL;
 2919                                 }
 2920                         }
 2921                         break;
 2922                 }
 2923         case SCTP_PEER_AUTH_CHUNKS:
 2924                 {
 2925                         struct sctp_authchunks *sac;
 2926                         sctp_auth_chklist_t *chklist = NULL;
 2927                         size_t size = 0;
 2928 
 2929                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
 2930                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
 2931 
 2932                         if (stcb) {
 2933                                 /* get off the assoc */
 2934                                 chklist = stcb->asoc.peer_auth_chunks;
 2935                                 /* is there enough space? */
 2936                                 size = sctp_auth_get_chklist_size(chklist);
 2937                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
 2938                                         error = EINVAL;
 2939                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 2940                                 } else {
 2941                                         /* copy in the chunks */
 2942                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
 2943                                         sac->gauth_number_of_chunks = (uint32_t) size;
 2944                                         *optsize = sizeof(struct sctp_authchunks) + size;
 2945                                 }
 2946                                 SCTP_TCB_UNLOCK(stcb);
 2947                         } else {
 2948                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 2949                                 error = ENOENT;
 2950                         }
 2951                         break;
 2952                 }
 2953         case SCTP_EVENT:
 2954                 {
 2955                         struct sctp_event *event;
 2956                         uint32_t event_type;
 2957 
 2958                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, *optsize);
 2959                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
 2960 
 2961                         switch (event->se_type) {
 2962                         case SCTP_ASSOC_CHANGE:
 2963                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
 2964                                 break;
 2965                         case SCTP_PEER_ADDR_CHANGE:
 2966                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
 2967                                 break;
 2968                         case SCTP_REMOTE_ERROR:
 2969                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
 2970                                 break;
 2971                         case SCTP_SEND_FAILED:
 2972                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
 2973                                 break;
 2974                         case SCTP_SHUTDOWN_EVENT:
 2975                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
 2976                                 break;
 2977                         case SCTP_ADAPTATION_INDICATION:
 2978                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
 2979                                 break;
 2980                         case SCTP_PARTIAL_DELIVERY_EVENT:
 2981                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
 2982                                 break;
 2983                         case SCTP_AUTHENTICATION_EVENT:
 2984                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
 2985                                 break;
 2986                         case SCTP_STREAM_RESET_EVENT:
 2987                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
 2988                                 break;
 2989                         case SCTP_SENDER_DRY_EVENT:
 2990                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
 2991                                 break;
 2992                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
 2993                                 event_type = 0;
 2994                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
 2995                                 error = ENOTSUP;
 2996                                 break;
 2997                         case SCTP_ASSOC_RESET_EVENT:
 2998                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
 2999                                 break;
 3000                         case SCTP_STREAM_CHANGE_EVENT:
 3001                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
 3002                                 break;
 3003                         case SCTP_SEND_FAILED_EVENT:
 3004                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
 3005                                 break;
 3006                         default:
 3007                                 event_type = 0;
 3008                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3009                                 error = EINVAL;
 3010                                 break;
 3011                         }
 3012                         if (event_type > 0) {
 3013                                 if (stcb) {
 3014                                         event->se_on = sctp_stcb_is_feature_on(inp, stcb, event_type);
 3015                                         SCTP_TCB_UNLOCK(stcb);
 3016                                 } else {
 3017                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3018                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3019                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC)) {
 3020                                                 SCTP_INP_RLOCK(inp);
 3021                                                 event->se_on = sctp_is_feature_on(inp, event_type);
 3022                                                 SCTP_INP_RUNLOCK(inp);
 3023                                         } else {
 3024                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3025                                                 error = EINVAL;
 3026                                         }
 3027                                 }
 3028                         }
 3029                         if (error == 0) {
 3030                                 *optsize = sizeof(struct sctp_event);
 3031                         }
 3032                         break;
 3033                 }
 3034         case SCTP_RECVRCVINFO:
 3035                 {
 3036                         int onoff;
 3037 
 3038                         if (*optsize < sizeof(int)) {
 3039                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3040                                 error = EINVAL;
 3041                         } else {
 3042                                 SCTP_INP_RLOCK(inp);
 3043                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
 3044                                 SCTP_INP_RUNLOCK(inp);
 3045                         }
 3046                         if (error == 0) {
 3047                                 /* return the option value */
 3048                                 *(int *)optval = onoff;
 3049                                 *optsize = sizeof(int);
 3050                         }
 3051                         break;
 3052                 }
 3053         case SCTP_RECVNXTINFO:
 3054                 {
 3055                         int onoff;
 3056 
 3057                         if (*optsize < sizeof(int)) {
 3058                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3059                                 error = EINVAL;
 3060                         } else {
 3061                                 SCTP_INP_RLOCK(inp);
 3062                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
 3063                                 SCTP_INP_RUNLOCK(inp);
 3064                         }
 3065                         if (error == 0) {
 3066                                 /* return the option value */
 3067                                 *(int *)optval = onoff;
 3068                                 *optsize = sizeof(int);
 3069                         }
 3070                         break;
 3071                 }
 3072         case SCTP_DEFAULT_SNDINFO:
 3073                 {
 3074                         struct sctp_sndinfo *info;
 3075 
 3076                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, *optsize);
 3077                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
 3078 
 3079                         if (stcb) {
 3080                                 info->snd_sid = stcb->asoc.def_send.sinfo_stream;
 3081                                 info->snd_flags = stcb->asoc.def_send.sinfo_flags;
 3082                                 info->snd_flags &= 0xfff0;
 3083                                 info->snd_ppid = stcb->asoc.def_send.sinfo_ppid;
 3084                                 info->snd_context = stcb->asoc.def_send.sinfo_context;
 3085                                 SCTP_TCB_UNLOCK(stcb);
 3086                         } else {
 3087                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3088                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3089                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC)) {
 3090                                         SCTP_INP_RLOCK(inp);
 3091                                         info->snd_sid = inp->def_send.sinfo_stream;
 3092                                         info->snd_flags = inp->def_send.sinfo_flags;
 3093                                         info->snd_flags &= 0xfff0;
 3094                                         info->snd_ppid = inp->def_send.sinfo_ppid;
 3095                                         info->snd_context = inp->def_send.sinfo_context;
 3096                                         SCTP_INP_RUNLOCK(inp);
 3097                                 } else {
 3098                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3099                                         error = EINVAL;
 3100                                 }
 3101                         }
 3102                         if (error == 0) {
 3103                                 *optsize = sizeof(struct sctp_sndinfo);
 3104                         }
 3105                         break;
 3106                 }
 3107         case SCTP_DEFAULT_PRINFO:
 3108                 {
 3109                         struct sctp_default_prinfo *info;
 3110 
 3111                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, *optsize);
 3112                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
 3113 
 3114                         if (stcb) {
 3115                                 info->pr_policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
 3116                                 info->pr_value = stcb->asoc.def_send.sinfo_timetolive;
 3117                                 SCTP_TCB_UNLOCK(stcb);
 3118                         } else {
 3119                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3120                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3121                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC)) {
 3122                                         SCTP_INP_RLOCK(inp);
 3123                                         info->pr_policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
 3124                                         info->pr_value = inp->def_send.sinfo_timetolive;
 3125                                         SCTP_INP_RUNLOCK(inp);
 3126                                 } else {
 3127                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3128                                         error = EINVAL;
 3129                                 }
 3130                         }
 3131                         if (error == 0) {
 3132                                 *optsize = sizeof(struct sctp_default_prinfo);
 3133                         }
 3134                         break;
 3135                 }
 3136         case SCTP_PEER_ADDR_THLDS:
 3137                 {
 3138                         struct sctp_paddrthlds *thlds;
 3139                         struct sctp_nets *net;
 3140 
 3141                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, *optsize);
 3142                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
 3143 
 3144                         net = NULL;
 3145                         if (stcb) {
 3146                                 net = sctp_findnet(stcb, (struct sockaddr *)&thlds->spt_address);
 3147                         } else {
 3148                                 /*
 3149                                  * We increment here since
 3150                                  * sctp_findassociation_ep_addr() wil do a
 3151                                  * decrement if it finds the stcb as long as
 3152                                  * the locked tcb (last argument) is NOT a
 3153                                  * TCB.. aka NULL.
 3154                                  */
 3155                                 SCTP_INP_INCR_REF(inp);
 3156                                 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&thlds->spt_address, &net, NULL, NULL);
 3157                                 if (stcb == NULL) {
 3158                                         SCTP_INP_DECR_REF(inp);
 3159                                 }
 3160                         }
 3161                         if (stcb && (net == NULL)) {
 3162                                 struct sockaddr *sa;
 3163 
 3164                                 sa = (struct sockaddr *)&thlds->spt_address;
 3165 #ifdef INET
 3166                                 if (sa->sa_family == AF_INET) {
 3167                                         struct sockaddr_in *sin;
 3168 
 3169                                         sin = (struct sockaddr_in *)sa;
 3170                                         if (sin->sin_addr.s_addr) {
 3171                                                 error = EINVAL;
 3172                                                 SCTP_TCB_UNLOCK(stcb);
 3173                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 3174                                                 break;
 3175                                         }
 3176                                 } else
 3177 #endif
 3178 #ifdef INET6
 3179                                 if (sa->sa_family == AF_INET6) {
 3180                                         struct sockaddr_in6 *sin6;
 3181 
 3182                                         sin6 = (struct sockaddr_in6 *)sa;
 3183                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
 3184                                                 error = EINVAL;
 3185                                                 SCTP_TCB_UNLOCK(stcb);
 3186                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 3187                                                 break;
 3188                                         }
 3189                                 } else
 3190 #endif
 3191                                 {
 3192                                         error = EAFNOSUPPORT;
 3193                                         SCTP_TCB_UNLOCK(stcb);
 3194                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 3195                                         break;
 3196                                 }
 3197                         }
 3198                         if (stcb) {
 3199                                 if (net) {
 3200                                         thlds->spt_pathmaxrxt = net->failure_threshold;
 3201                                         thlds->spt_pathpfthld = net->pf_threshold;
 3202                                 } else {
 3203                                         thlds->spt_pathmaxrxt = stcb->asoc.def_net_failure;
 3204                                         thlds->spt_pathpfthld = stcb->asoc.def_net_pf_threshold;
 3205                                 }
 3206                                 thlds->spt_assoc_id = sctp_get_associd(stcb);
 3207                                 SCTP_TCB_UNLOCK(stcb);
 3208                         } else {
 3209                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3210                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3211                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
 3212                                         /* Use endpoint defaults */
 3213                                         SCTP_INP_RLOCK(inp);
 3214                                         thlds->spt_pathmaxrxt = inp->sctp_ep.def_net_failure;
 3215                                         thlds->spt_pathpfthld = inp->sctp_ep.def_net_pf_threshold;
 3216                                         SCTP_INP_RUNLOCK(inp);
 3217                                 } else {
 3218                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3219                                         error = EINVAL;
 3220                                 }
 3221                         }
 3222                         if (error == 0) {
 3223                                 *optsize = sizeof(struct sctp_paddrthlds);
 3224                         }
 3225                         break;
 3226                 }
 3227         case SCTP_REMOTE_UDP_ENCAPS_PORT:
 3228                 {
 3229                         struct sctp_udpencaps *encaps;
 3230                         struct sctp_nets *net;
 3231 
 3232                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, *optsize);
 3233                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
 3234 
 3235                         if (stcb) {
 3236                                 net = sctp_findnet(stcb, (struct sockaddr *)&encaps->sue_address);
 3237                         } else {
 3238                                 /*
 3239                                  * We increment here since
 3240                                  * sctp_findassociation_ep_addr() wil do a
 3241                                  * decrement if it finds the stcb as long as
 3242                                  * the locked tcb (last argument) is NOT a
 3243                                  * TCB.. aka NULL.
 3244                                  */
 3245                                 net = NULL;
 3246                                 SCTP_INP_INCR_REF(inp);
 3247                                 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&encaps->sue_address, &net, NULL, NULL);
 3248                                 if (stcb == NULL) {
 3249                                         SCTP_INP_DECR_REF(inp);
 3250                                 }
 3251                         }
 3252                         if (stcb && (net == NULL)) {
 3253                                 struct sockaddr *sa;
 3254 
 3255                                 sa = (struct sockaddr *)&encaps->sue_address;
 3256 #ifdef INET
 3257                                 if (sa->sa_family == AF_INET) {
 3258                                         struct sockaddr_in *sin;
 3259 
 3260                                         sin = (struct sockaddr_in *)sa;
 3261                                         if (sin->sin_addr.s_addr) {
 3262                                                 error = EINVAL;
 3263                                                 SCTP_TCB_UNLOCK(stcb);
 3264                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 3265                                                 break;
 3266                                         }
 3267                                 } else
 3268 #endif
 3269 #ifdef INET6
 3270                                 if (sa->sa_family == AF_INET6) {
 3271                                         struct sockaddr_in6 *sin6;
 3272 
 3273                                         sin6 = (struct sockaddr_in6 *)sa;
 3274                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
 3275                                                 error = EINVAL;
 3276                                                 SCTP_TCB_UNLOCK(stcb);
 3277                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 3278                                                 break;
 3279                                         }
 3280                                 } else
 3281 #endif
 3282                                 {
 3283                                         error = EAFNOSUPPORT;
 3284                                         SCTP_TCB_UNLOCK(stcb);
 3285                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 3286                                         break;
 3287                                 }
 3288                         }
 3289                         if (stcb) {
 3290                                 if (net) {
 3291                                         encaps->sue_port = net->port;
 3292                                 } else {
 3293                                         encaps->sue_port = stcb->asoc.port;
 3294                                 }
 3295                                 SCTP_TCB_UNLOCK(stcb);
 3296                         } else {
 3297                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3298                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3299                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
 3300                                         SCTP_INP_RLOCK(inp);
 3301                                         encaps->sue_port = inp->sctp_ep.port;
 3302                                         SCTP_INP_RUNLOCK(inp);
 3303                                 } else {
 3304                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3305                                         error = EINVAL;
 3306                                 }
 3307                         }
 3308                         if (error == 0) {
 3309                                 *optsize = sizeof(struct sctp_udpencaps);
 3310                         }
 3311                         break;
 3312                 }
 3313         case SCTP_ENABLE_STREAM_RESET:
 3314                 {
 3315                         struct sctp_assoc_value *av;
 3316 
 3317                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 3318                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 3319 
 3320                         if (stcb) {
 3321                                 av->assoc_value = (uint32_t) stcb->asoc.local_strreset_support;
 3322                                 SCTP_TCB_UNLOCK(stcb);
 3323                         } else {
 3324                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3325                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3326                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 3327                                         SCTP_INP_RLOCK(inp);
 3328                                         av->assoc_value = (uint32_t) inp->local_strreset_support;
 3329                                         SCTP_INP_RUNLOCK(inp);
 3330                                 } else {
 3331                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3332                                         error = EINVAL;
 3333                                 }
 3334                         }
 3335                         if (error == 0) {
 3336                                 *optsize = sizeof(struct sctp_assoc_value);
 3337                         }
 3338                         break;
 3339                 }
 3340         default:
 3341                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
 3342                 error = ENOPROTOOPT;
 3343                 break;
 3344         }                       /* end switch (sopt->sopt_name) */
 3345         if (error) {
 3346                 *optsize = 0;
 3347         }
 3348         return (error);
 3349 }
 3350 
 3351 static int
 3352 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
 3353     void *p)
 3354 {
 3355         int error, set_opt;
 3356         uint32_t *mopt;
 3357         struct sctp_tcb *stcb = NULL;
 3358         struct sctp_inpcb *inp = NULL;
 3359         uint32_t vrf_id;
 3360 
 3361         if (optval == NULL) {
 3362                 SCTP_PRINTF("optval is NULL\n");
 3363                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3364                 return (EINVAL);
 3365         }
 3366         inp = (struct sctp_inpcb *)so->so_pcb;
 3367         if (inp == NULL) {
 3368                 SCTP_PRINTF("inp is NULL?\n");
 3369                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3370                 return (EINVAL);
 3371         }
 3372         vrf_id = inp->def_vrf_id;
 3373 
 3374         error = 0;
 3375         switch (optname) {
 3376         case SCTP_NODELAY:
 3377         case SCTP_AUTOCLOSE:
 3378         case SCTP_AUTO_ASCONF:
 3379         case SCTP_EXPLICIT_EOR:
 3380         case SCTP_DISABLE_FRAGMENTS:
 3381         case SCTP_USE_EXT_RCVINFO:
 3382         case SCTP_I_WANT_MAPPED_V4_ADDR:
 3383                 /* copy in the option value */
 3384                 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
 3385                 set_opt = 0;
 3386                 if (error)
 3387                         break;
 3388                 switch (optname) {
 3389                 case SCTP_DISABLE_FRAGMENTS:
 3390                         set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT;
 3391                         break;
 3392                 case SCTP_AUTO_ASCONF:
 3393                         /*
 3394                          * NOTE: we don't really support this flag
 3395                          */
 3396                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
 3397                                 /* only valid for bound all sockets */
 3398                                 if ((SCTP_BASE_SYSCTL(sctp_auto_asconf) == 0) &&
 3399                                     (*mopt != 0)) {
 3400                                         /* forbidden by admin */
 3401                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPERM);
 3402                                         return (EPERM);
 3403                                 }
 3404                                 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF;
 3405                         } else {
 3406                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3407                                 return (EINVAL);
 3408                         }
 3409                         break;
 3410                 case SCTP_EXPLICIT_EOR:
 3411                         set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR;
 3412                         break;
 3413                 case SCTP_USE_EXT_RCVINFO:
 3414                         set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO;
 3415                         break;
 3416                 case SCTP_I_WANT_MAPPED_V4_ADDR:
 3417                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 3418                                 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4;
 3419                         } else {
 3420                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3421                                 return (EINVAL);
 3422                         }
 3423                         break;
 3424                 case SCTP_NODELAY:
 3425                         set_opt = SCTP_PCB_FLAGS_NODELAY;
 3426                         break;
 3427                 case SCTP_AUTOCLOSE:
 3428                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3429                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 3430                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3431                                 return (EINVAL);
 3432                         }
 3433                         set_opt = SCTP_PCB_FLAGS_AUTOCLOSE;
 3434                         /*
 3435                          * The value is in ticks. Note this does not effect
 3436                          * old associations, only new ones.
 3437                          */
 3438                         inp->sctp_ep.auto_close_time = SEC_TO_TICKS(*mopt);
 3439                         break;
 3440                 }
 3441                 SCTP_INP_WLOCK(inp);
 3442                 if (*mopt != 0) {
 3443                         sctp_feature_on(inp, set_opt);
 3444                 } else {
 3445                         sctp_feature_off(inp, set_opt);
 3446                 }
 3447                 SCTP_INP_WUNLOCK(inp);
 3448                 break;
 3449         case SCTP_REUSE_PORT:
 3450                 {
 3451                         SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
 3452                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
 3453                                 /* Can't set it after we are bound */
 3454                                 error = EINVAL;
 3455                                 break;
 3456                         }
 3457                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
 3458                                 /* Can't do this for a 1-m socket */
 3459                                 error = EINVAL;
 3460                                 break;
 3461                         }
 3462                         if (optval)
 3463                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
 3464                         else
 3465                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE);
 3466                         break;
 3467                 }
 3468         case SCTP_PARTIAL_DELIVERY_POINT:
 3469                 {
 3470                         uint32_t *value;
 3471 
 3472                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
 3473                         if (*value > SCTP_SB_LIMIT_RCV(so)) {
 3474                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3475                                 error = EINVAL;
 3476                                 break;
 3477                         }
 3478                         inp->partial_delivery_point = *value;
 3479                         break;
 3480                 }
 3481         case SCTP_FRAGMENT_INTERLEAVE:
 3482                 /* not yet until we re-write sctp_recvmsg() */
 3483                 {
 3484                         uint32_t *level;
 3485 
 3486                         SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize);
 3487                         if (*level == SCTP_FRAG_LEVEL_2) {
 3488                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
 3489                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
 3490                         } else if (*level == SCTP_FRAG_LEVEL_1) {
 3491                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
 3492                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
 3493                         } else if (*level == SCTP_FRAG_LEVEL_0) {
 3494                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
 3495                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
 3496 
 3497                         } else {
 3498                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3499                                 error = EINVAL;
 3500                         }
 3501                         break;
 3502                 }
 3503         case SCTP_CMT_ON_OFF:
 3504                 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
 3505                         struct sctp_assoc_value *av;
 3506 
 3507                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 3508                         if (av->assoc_value > SCTP_CMT_MAX) {
 3509                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3510                                 error = EINVAL;
 3511                                 break;
 3512                         }
 3513                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 3514                         if (stcb) {
 3515                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
 3516                                 SCTP_TCB_UNLOCK(stcb);
 3517                         } else {
 3518                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3519                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3520                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
 3521                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
 3522                                         SCTP_INP_WLOCK(inp);
 3523                                         inp->sctp_cmt_on_off = av->assoc_value;
 3524                                         SCTP_INP_WUNLOCK(inp);
 3525                                 }
 3526                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
 3527                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
 3528                                         SCTP_INP_RLOCK(inp);
 3529                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 3530                                                 SCTP_TCB_LOCK(stcb);
 3531                                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
 3532                                                 SCTP_TCB_UNLOCK(stcb);
 3533                                         }
 3534                                         SCTP_INP_RUNLOCK(inp);
 3535                                 }
 3536                         }
 3537                 } else {
 3538                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
 3539                         error = ENOPROTOOPT;
 3540                 }
 3541                 break;
 3542         case SCTP_PLUGGABLE_CC:
 3543                 {
 3544                         struct sctp_assoc_value *av;
 3545                         struct sctp_nets *net;
 3546 
 3547                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 3548                         if ((av->assoc_value != SCTP_CC_RFC2581) &&
 3549                             (av->assoc_value != SCTP_CC_HSTCP) &&
 3550                             (av->assoc_value != SCTP_CC_HTCP) &&
 3551                             (av->assoc_value != SCTP_CC_RTCC)) {
 3552                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3553                                 error = EINVAL;
 3554                                 break;
 3555                         }
 3556                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 3557                         if (stcb) {
 3558                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
 3559                                 stcb->asoc.congestion_control_module = av->assoc_value;
 3560                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
 3561                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 3562                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
 3563                                         }
 3564                                 }
 3565                                 SCTP_TCB_UNLOCK(stcb);
 3566                         } else {
 3567                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3568                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3569                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
 3570                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
 3571                                         SCTP_INP_WLOCK(inp);
 3572                                         inp->sctp_ep.sctp_default_cc_module = av->assoc_value;
 3573                                         SCTP_INP_WUNLOCK(inp);
 3574                                 }
 3575                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
 3576                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
 3577                                         SCTP_INP_RLOCK(inp);
 3578                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 3579                                                 SCTP_TCB_LOCK(stcb);
 3580                                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
 3581                                                 stcb->asoc.congestion_control_module = av->assoc_value;
 3582                                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
 3583                                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 3584                                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
 3585                                                         }
 3586                                                 }
 3587                                                 SCTP_TCB_UNLOCK(stcb);
 3588                                         }
 3589                                         SCTP_INP_RUNLOCK(inp);
 3590                                 }
 3591                         }
 3592                         break;
 3593                 }
 3594         case SCTP_CC_OPTION:
 3595                 {
 3596                         struct sctp_cc_option *cc_opt;
 3597 
 3598                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, optsize);
 3599                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
 3600                         if (stcb == NULL) {
 3601                                 if (cc_opt->aid_value.assoc_id == SCTP_CURRENT_ASSOC) {
 3602                                         SCTP_INP_RLOCK(inp);
 3603                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 3604                                                 SCTP_TCB_LOCK(stcb);
 3605                                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option) {
 3606                                                         (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1, cc_opt);
 3607                                                 }
 3608                                                 SCTP_TCB_UNLOCK(stcb);
 3609                                         }
 3610                                         SCTP_INP_RUNLOCK(inp);
 3611                                 } else {
 3612                                         error = EINVAL;
 3613                                 }
 3614                         } else {
 3615                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
 3616                                         error = ENOTSUP;
 3617                                 } else {
 3618                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1,
 3619                                             cc_opt);
 3620                                 }
 3621                                 SCTP_TCB_UNLOCK(stcb);
 3622                         }
 3623                         break;
 3624                 }
 3625         case SCTP_PLUGGABLE_SS:
 3626                 {
 3627                         struct sctp_assoc_value *av;
 3628 
 3629                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 3630                         if ((av->assoc_value != SCTP_SS_DEFAULT) &&
 3631                             (av->assoc_value != SCTP_SS_ROUND_ROBIN) &&
 3632                             (av->assoc_value != SCTP_SS_ROUND_ROBIN_PACKET) &&
 3633                             (av->assoc_value != SCTP_SS_PRIORITY) &&
 3634                             (av->assoc_value != SCTP_SS_FAIR_BANDWITH) &&
 3635                             (av->assoc_value != SCTP_SS_FIRST_COME)) {
 3636                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3637                                 error = EINVAL;
 3638                                 break;
 3639                         }
 3640                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 3641                         if (stcb) {
 3642                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
 3643                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
 3644                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
 3645                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
 3646                                 SCTP_TCB_UNLOCK(stcb);
 3647                         } else {
 3648                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3649                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3650                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
 3651                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
 3652                                         SCTP_INP_WLOCK(inp);
 3653                                         inp->sctp_ep.sctp_default_ss_module = av->assoc_value;
 3654                                         SCTP_INP_WUNLOCK(inp);
 3655                                 }
 3656                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
 3657                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
 3658                                         SCTP_INP_RLOCK(inp);
 3659                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 3660                                                 SCTP_TCB_LOCK(stcb);
 3661                                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
 3662                                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
 3663                                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
 3664                                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
 3665                                                 SCTP_TCB_UNLOCK(stcb);
 3666                                         }
 3667                                         SCTP_INP_RUNLOCK(inp);
 3668                                 }
 3669                         }
 3670                         break;
 3671                 }
 3672         case SCTP_SS_VALUE:
 3673                 {
 3674                         struct sctp_stream_value *av;
 3675 
 3676                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, optsize);
 3677                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 3678                         if (stcb) {
 3679                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
 3680                                     (stcb->asoc.ss_functions.sctp_ss_set_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
 3681                                     av->stream_value) < 0)) {
 3682                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3683                                         error = EINVAL;
 3684                                 }
 3685                                 SCTP_TCB_UNLOCK(stcb);
 3686                         } else {
 3687                                 if (av->assoc_id == SCTP_CURRENT_ASSOC) {
 3688                                         SCTP_INP_RLOCK(inp);
 3689                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 3690                                                 SCTP_TCB_LOCK(stcb);
 3691                                                 if (av->stream_id < stcb->asoc.streamoutcnt) {
 3692                                                         stcb->asoc.ss_functions.sctp_ss_set_value(stcb,
 3693                                                             &stcb->asoc,
 3694                                                             &stcb->asoc.strmout[av->stream_id],
 3695                                                             av->stream_value);
 3696                                                 }
 3697                                                 SCTP_TCB_UNLOCK(stcb);
 3698                                         }
 3699                                         SCTP_INP_RUNLOCK(inp);
 3700 
 3701                                 } else {
 3702                                         /*
 3703                                          * Can't set stream value without
 3704                                          * association
 3705                                          */
 3706                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3707                                         error = EINVAL;
 3708                                 }
 3709                         }
 3710                         break;
 3711                 }
 3712         case SCTP_CLR_STAT_LOG:
 3713                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 3714                 error = EOPNOTSUPP;
 3715                 break;
 3716         case SCTP_CONTEXT:
 3717                 {
 3718                         struct sctp_assoc_value *av;
 3719 
 3720                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 3721                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 3722 
 3723                         if (stcb) {
 3724                                 stcb->asoc.context = av->assoc_value;
 3725                                 SCTP_TCB_UNLOCK(stcb);
 3726                         } else {
 3727                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3728                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3729                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
 3730                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
 3731                                         SCTP_INP_WLOCK(inp);
 3732                                         inp->sctp_context = av->assoc_value;
 3733                                         SCTP_INP_WUNLOCK(inp);
 3734                                 }
 3735                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
 3736                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
 3737                                         SCTP_INP_RLOCK(inp);
 3738                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 3739                                                 SCTP_TCB_LOCK(stcb);
 3740                                                 stcb->asoc.context = av->assoc_value;
 3741                                                 SCTP_TCB_UNLOCK(stcb);
 3742                                         }
 3743                                         SCTP_INP_RUNLOCK(inp);
 3744                                 }
 3745                         }
 3746                         break;
 3747                 }
 3748         case SCTP_VRF_ID:
 3749                 {
 3750                         uint32_t *default_vrfid;
 3751 
 3752                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize);
 3753                         if (*default_vrfid > SCTP_MAX_VRF_ID) {
 3754                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3755                                 error = EINVAL;
 3756                                 break;
 3757                         }
 3758                         inp->def_vrf_id = *default_vrfid;
 3759                         break;
 3760                 }
 3761         case SCTP_DEL_VRF_ID:
 3762                 {
 3763                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 3764                         error = EOPNOTSUPP;
 3765                         break;
 3766                 }
 3767         case SCTP_ADD_VRF_ID:
 3768                 {
 3769                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 3770                         error = EOPNOTSUPP;
 3771                         break;
 3772                 }
 3773         case SCTP_DELAYED_SACK:
 3774                 {
 3775                         struct sctp_sack_info *sack;
 3776 
 3777                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize);
 3778                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
 3779                         if (sack->sack_delay) {
 3780                                 if (sack->sack_delay > SCTP_MAX_SACK_DELAY)
 3781                                         sack->sack_delay = SCTP_MAX_SACK_DELAY;
 3782                                 if (MSEC_TO_TICKS(sack->sack_delay) < 1) {
 3783                                         sack->sack_delay = TICKS_TO_MSEC(1);
 3784                                 }
 3785                         }
 3786                         if (stcb) {
 3787                                 if (sack->sack_delay) {
 3788                                         stcb->asoc.delayed_ack = sack->sack_delay;
 3789                                 }
 3790                                 if (sack->sack_freq) {
 3791                                         stcb->asoc.sack_freq = sack->sack_freq;
 3792                                 }
 3793                                 SCTP_TCB_UNLOCK(stcb);
 3794                         } else {
 3795                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3796                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3797                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC) ||
 3798                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
 3799                                         SCTP_INP_WLOCK(inp);
 3800                                         if (sack->sack_delay) {
 3801                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = MSEC_TO_TICKS(sack->sack_delay);
 3802                                         }
 3803                                         if (sack->sack_freq) {
 3804                                                 inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
 3805                                         }
 3806                                         SCTP_INP_WUNLOCK(inp);
 3807                                 }
 3808                                 if ((sack->sack_assoc_id == SCTP_CURRENT_ASSOC) ||
 3809                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
 3810                                         SCTP_INP_RLOCK(inp);
 3811                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 3812                                                 SCTP_TCB_LOCK(stcb);
 3813                                                 if (sack->sack_delay) {
 3814                                                         stcb->asoc.delayed_ack = sack->sack_delay;
 3815                                                 }
 3816                                                 if (sack->sack_freq) {
 3817                                                         stcb->asoc.sack_freq = sack->sack_freq;
 3818                                                 }
 3819                                                 SCTP_TCB_UNLOCK(stcb);
 3820                                         }
 3821                                         SCTP_INP_RUNLOCK(inp);
 3822                                 }
 3823                         }
 3824                         break;
 3825                 }
 3826         case SCTP_AUTH_CHUNK:
 3827                 {
 3828                         struct sctp_authchunk *sauth;
 3829 
 3830                         SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize);
 3831 
 3832                         SCTP_INP_WLOCK(inp);
 3833                         if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) {
 3834                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3835                                 error = EINVAL;
 3836                         }
 3837                         SCTP_INP_WUNLOCK(inp);
 3838                         break;
 3839                 }
 3840         case SCTP_AUTH_KEY:
 3841                 {
 3842                         struct sctp_authkey *sca;
 3843                         struct sctp_keyhead *shared_keys;
 3844                         sctp_sharedkey_t *shared_key;
 3845                         sctp_key_t *key = NULL;
 3846                         size_t size;
 3847 
 3848                         SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize);
 3849                         if (sca->sca_keylength == 0) {
 3850                                 size = optsize - sizeof(struct sctp_authkey);
 3851                         } else {
 3852                                 if (sca->sca_keylength + sizeof(struct sctp_authkey) <= optsize) {
 3853                                         size = sca->sca_keylength;
 3854                                 } else {
 3855                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3856                                         error = EINVAL;
 3857                                         break;
 3858                                 }
 3859                         }
 3860                         SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id);
 3861 
 3862                         if (stcb) {
 3863                                 shared_keys = &stcb->asoc.shared_keys;
 3864                                 /* clear the cached keys for this key id */
 3865                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
 3866                                 /*
 3867                                  * create the new shared key and
 3868                                  * insert/replace it
 3869                                  */
 3870                                 if (size > 0) {
 3871                                         key = sctp_set_key(sca->sca_key, (uint32_t) size);
 3872                                         if (key == NULL) {
 3873                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
 3874                                                 error = ENOMEM;
 3875                                                 SCTP_TCB_UNLOCK(stcb);
 3876                                                 break;
 3877                                         }
 3878                                 }
 3879                                 shared_key = sctp_alloc_sharedkey();
 3880                                 if (shared_key == NULL) {
 3881                                         sctp_free_key(key);
 3882                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
 3883                                         error = ENOMEM;
 3884                                         SCTP_TCB_UNLOCK(stcb);
 3885                                         break;
 3886                                 }
 3887                                 shared_key->key = key;
 3888                                 shared_key->keyid = sca->sca_keynumber;
 3889                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
 3890                                 SCTP_TCB_UNLOCK(stcb);
 3891                         } else {
 3892                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 3893                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 3894                                     (sca->sca_assoc_id == SCTP_FUTURE_ASSOC) ||
 3895                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
 3896                                         SCTP_INP_WLOCK(inp);
 3897                                         shared_keys = &inp->sctp_ep.shared_keys;
 3898                                         /*
 3899                                          * clear the cached keys on all
 3900                                          * assocs for this key id
 3901                                          */
 3902                                         sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber);
 3903                                         /*
 3904                                          * create the new shared key and
 3905                                          * insert/replace it
 3906                                          */
 3907                                         if (size > 0) {
 3908                                                 key = sctp_set_key(sca->sca_key, (uint32_t) size);
 3909                                                 if (key == NULL) {
 3910                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
 3911                                                         error = ENOMEM;
 3912                                                         SCTP_INP_WUNLOCK(inp);
 3913                                                         break;
 3914                                                 }
 3915                                         }
 3916                                         shared_key = sctp_alloc_sharedkey();
 3917                                         if (shared_key == NULL) {
 3918                                                 sctp_free_key(key);
 3919                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
 3920                                                 error = ENOMEM;
 3921                                                 SCTP_INP_WUNLOCK(inp);
 3922                                                 break;
 3923                                         }
 3924                                         shared_key->key = key;
 3925                                         shared_key->keyid = sca->sca_keynumber;
 3926                                         error = sctp_insert_sharedkey(shared_keys, shared_key);
 3927                                         SCTP_INP_WUNLOCK(inp);
 3928                                 }
 3929                                 if ((sca->sca_assoc_id == SCTP_CURRENT_ASSOC) ||
 3930                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
 3931                                         SCTP_INP_RLOCK(inp);
 3932                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 3933                                                 SCTP_TCB_LOCK(stcb);
 3934                                                 shared_keys = &stcb->asoc.shared_keys;
 3935                                                 /*
 3936                                                  * clear the cached keys for
 3937                                                  * this key id
 3938                                                  */
 3939                                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
 3940                                                 /*
 3941                                                  * create the new shared key
 3942                                                  * and insert/replace it
 3943                                                  */
 3944                                                 if (size > 0) {
 3945                                                         key = sctp_set_key(sca->sca_key, (uint32_t) size);
 3946                                                         if (key == NULL) {
 3947                                                                 SCTP_TCB_UNLOCK(stcb);
 3948                                                                 continue;
 3949                                                         }
 3950                                                 }
 3951                                                 shared_key = sctp_alloc_sharedkey();
 3952                                                 if (shared_key == NULL) {
 3953                                                         sctp_free_key(key);
 3954                                                         SCTP_TCB_UNLOCK(stcb);
 3955                                                         continue;
 3956                                                 }
 3957                                                 shared_key->key = key;
 3958                                                 shared_key->keyid = sca->sca_keynumber;
 3959                                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
 3960                                                 SCTP_TCB_UNLOCK(stcb);
 3961                                         }
 3962                                         SCTP_INP_RUNLOCK(inp);
 3963                                 }
 3964                         }
 3965                         break;
 3966                 }
 3967         case SCTP_HMAC_IDENT:
 3968                 {
 3969                         struct sctp_hmacalgo *shmac;
 3970                         sctp_hmaclist_t *hmaclist;
 3971                         uint16_t hmacid;
 3972                         uint32_t i;
 3973 
 3974                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize);
 3975                         if (optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) {
 3976                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3977                                 error = EINVAL;
 3978                                 break;
 3979                         }
 3980                         hmaclist = sctp_alloc_hmaclist(shmac->shmac_number_of_idents);
 3981                         if (hmaclist == NULL) {
 3982                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
 3983                                 error = ENOMEM;
 3984                                 break;
 3985                         }
 3986                         for (i = 0; i < shmac->shmac_number_of_idents; i++) {
 3987                                 hmacid = shmac->shmac_idents[i];
 3988                                 if (sctp_auth_add_hmacid(hmaclist, hmacid)) {
 3989                                          /* invalid HMACs were found */ ;
 3990                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 3991                                         error = EINVAL;
 3992                                         sctp_free_hmaclist(hmaclist);
 3993                                         goto sctp_set_hmac_done;
 3994                                 }
 3995                         }
 3996                         for (i = 0; i < hmaclist->num_algo; i++) {
 3997                                 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) {
 3998                                         /* already in list */
 3999                                         break;
 4000                                 }
 4001                         }
 4002                         if (i == hmaclist->num_algo) {
 4003                                 /* not found in list */
 4004                                 sctp_free_hmaclist(hmaclist);
 4005                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4006                                 error = EINVAL;
 4007                                 break;
 4008                         }
 4009                         /* set it on the endpoint */
 4010                         SCTP_INP_WLOCK(inp);
 4011                         if (inp->sctp_ep.local_hmacs)
 4012                                 sctp_free_hmaclist(inp->sctp_ep.local_hmacs);
 4013                         inp->sctp_ep.local_hmacs = hmaclist;
 4014                         SCTP_INP_WUNLOCK(inp);
 4015         sctp_set_hmac_done:
 4016                         break;
 4017                 }
 4018         case SCTP_AUTH_ACTIVE_KEY:
 4019                 {
 4020                         struct sctp_authkeyid *scact;
 4021 
 4022                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize);
 4023                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
 4024 
 4025                         /* set the active key on the right place */
 4026                         if (stcb) {
 4027                                 /* set the active key on the assoc */
 4028                                 if (sctp_auth_setactivekey(stcb,
 4029                                     scact->scact_keynumber)) {
 4030                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
 4031                                             SCTP_FROM_SCTP_USRREQ,
 4032                                             EINVAL);
 4033                                         error = EINVAL;
 4034                                 }
 4035                                 SCTP_TCB_UNLOCK(stcb);
 4036                         } else {
 4037                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 4038                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 4039                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
 4040                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
 4041                                         SCTP_INP_WLOCK(inp);
 4042                                         if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) {
 4043                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4044                                                 error = EINVAL;
 4045                                         }
 4046                                         SCTP_INP_WUNLOCK(inp);
 4047                                 }
 4048                                 if ((scact->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
 4049                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
 4050                                         SCTP_INP_RLOCK(inp);
 4051                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 4052                                                 SCTP_TCB_LOCK(stcb);
 4053                                                 sctp_auth_setactivekey(stcb, scact->scact_keynumber);
 4054                                                 SCTP_TCB_UNLOCK(stcb);
 4055                                         }
 4056                                         SCTP_INP_RUNLOCK(inp);
 4057                                 }
 4058                         }
 4059                         break;
 4060                 }
 4061         case SCTP_AUTH_DELETE_KEY:
 4062                 {
 4063                         struct sctp_authkeyid *scdel;
 4064 
 4065                         SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize);
 4066                         SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id);
 4067 
 4068                         /* delete the key from the right place */
 4069                         if (stcb) {
 4070                                 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) {
 4071                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4072                                         error = EINVAL;
 4073                                 }
 4074                                 SCTP_TCB_UNLOCK(stcb);
 4075                         } else {
 4076                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 4077                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 4078                                     (scdel->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
 4079                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
 4080                                         SCTP_INP_WLOCK(inp);
 4081                                         if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) {
 4082                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4083                                                 error = EINVAL;
 4084                                         }
 4085                                         SCTP_INP_WUNLOCK(inp);
 4086                                 }
 4087                                 if ((scdel->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
 4088                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
 4089                                         SCTP_INP_RLOCK(inp);
 4090                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 4091                                                 SCTP_TCB_LOCK(stcb);
 4092                                                 sctp_delete_sharedkey(stcb, scdel->scact_keynumber);
 4093                                                 SCTP_TCB_UNLOCK(stcb);
 4094                                         }
 4095                                         SCTP_INP_RUNLOCK(inp);
 4096                                 }
 4097                         }
 4098                         break;
 4099                 }
 4100         case SCTP_AUTH_DEACTIVATE_KEY:
 4101                 {
 4102                         struct sctp_authkeyid *keyid;
 4103 
 4104                         SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, optsize);
 4105                         SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id);
 4106 
 4107                         /* deactivate the key from the right place */
 4108                         if (stcb) {
 4109                                 if (sctp_deact_sharedkey(stcb, keyid->scact_keynumber)) {
 4110                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4111                                         error = EINVAL;
 4112                                 }
 4113                                 SCTP_TCB_UNLOCK(stcb);
 4114                         } else {
 4115                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 4116                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 4117                                     (keyid->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
 4118                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
 4119                                         SCTP_INP_WLOCK(inp);
 4120                                         if (sctp_deact_sharedkey_ep(inp, keyid->scact_keynumber)) {
 4121                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4122                                                 error = EINVAL;
 4123                                         }
 4124                                         SCTP_INP_WUNLOCK(inp);
 4125                                 }
 4126                                 if ((keyid->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
 4127                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
 4128                                         SCTP_INP_RLOCK(inp);
 4129                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 4130                                                 SCTP_TCB_LOCK(stcb);
 4131                                                 sctp_deact_sharedkey(stcb, keyid->scact_keynumber);
 4132                                                 SCTP_TCB_UNLOCK(stcb);
 4133                                         }
 4134                                         SCTP_INP_RUNLOCK(inp);
 4135                                 }
 4136                         }
 4137                         break;
 4138                 }
 4139         case SCTP_ENABLE_STREAM_RESET:
 4140                 {
 4141                         struct sctp_assoc_value *av;
 4142 
 4143                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 4144                         if (av->assoc_value & (~SCTP_ENABLE_VALUE_MASK)) {
 4145                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4146                                 error = EINVAL;
 4147                                 break;
 4148                         }
 4149                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 4150                         if (stcb) {
 4151                                 stcb->asoc.local_strreset_support = (uint8_t) av->assoc_value;
 4152                                 SCTP_TCB_UNLOCK(stcb);
 4153                         } else {
 4154                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 4155                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 4156                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
 4157                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
 4158                                         SCTP_INP_WLOCK(inp);
 4159                                         inp->local_strreset_support = (uint8_t) av->assoc_value;
 4160                                         SCTP_INP_WUNLOCK(inp);
 4161                                 }
 4162                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
 4163                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
 4164                                         SCTP_INP_RLOCK(inp);
 4165                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 4166                                                 SCTP_TCB_LOCK(stcb);
 4167                                                 stcb->asoc.local_strreset_support = (uint8_t) av->assoc_value;
 4168                                                 SCTP_TCB_UNLOCK(stcb);
 4169                                         }
 4170                                         SCTP_INP_RUNLOCK(inp);
 4171                                 }
 4172                         }
 4173                         break;
 4174                 }
 4175         case SCTP_RESET_STREAMS:
 4176                 {
 4177                         struct sctp_reset_streams *strrst;
 4178                         int i, send_out = 0;
 4179                         int send_in = 0;
 4180 
 4181                         SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_reset_streams, optsize);
 4182                         SCTP_FIND_STCB(inp, stcb, strrst->srs_assoc_id);
 4183                         if (stcb == NULL) {
 4184                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 4185                                 error = ENOENT;
 4186                                 break;
 4187                         }
 4188                         if (stcb->asoc.peer_supports_strreset == 0) {
 4189                                 /*
 4190                                  * Peer does not support the chunk type.
 4191                                  */
 4192                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 4193                                 error = EOPNOTSUPP;
 4194                                 SCTP_TCB_UNLOCK(stcb);
 4195                                 break;
 4196                         }
 4197                         if (stcb->asoc.stream_reset_outstanding) {
 4198                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
 4199                                 error = EALREADY;
 4200                                 SCTP_TCB_UNLOCK(stcb);
 4201                                 break;
 4202                         }
 4203                         if (strrst->srs_flags & SCTP_STREAM_RESET_INCOMING) {
 4204                                 send_in = 1;
 4205                         }
 4206                         if (strrst->srs_flags & SCTP_STREAM_RESET_OUTGOING) {
 4207                                 send_out = 1;
 4208                         }
 4209                         if ((send_in == 0) && (send_out == 0)) {
 4210                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4211                                 error = EINVAL;
 4212                                 SCTP_TCB_UNLOCK(stcb);
 4213                                 break;
 4214                         }
 4215                         for (i = 0; i < strrst->srs_number_streams; i++) {
 4216                                 if ((send_in) &&
 4217                                     (strrst->srs_stream_list[i] > stcb->asoc.streamincnt)) {
 4218                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4219                                         error = EINVAL;
 4220                                         break;
 4221                                 }
 4222                                 if ((send_out) &&
 4223                                     (strrst->srs_stream_list[i] > stcb->asoc.streamoutcnt)) {
 4224                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4225                                         error = EINVAL;
 4226                                         break;
 4227                                 }
 4228                         }
 4229                         if (error) {
 4230                                 SCTP_TCB_UNLOCK(stcb);
 4231                                 break;
 4232                         }
 4233                         error = sctp_send_str_reset_req(stcb, strrst->srs_number_streams,
 4234                             strrst->srs_stream_list,
 4235                             send_out, send_in, 0, 0, 0, 0, 0);
 4236 
 4237                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
 4238                         SCTP_TCB_UNLOCK(stcb);
 4239                         break;
 4240                 }
 4241         case SCTP_ADD_STREAMS:
 4242                 {
 4243                         struct sctp_add_streams *stradd;
 4244                         uint8_t addstream = 0;
 4245                         uint16_t add_o_strmcnt = 0;
 4246                         uint16_t add_i_strmcnt = 0;
 4247 
 4248                         SCTP_CHECK_AND_CAST(stradd, optval, struct sctp_add_streams, optsize);
 4249                         SCTP_FIND_STCB(inp, stcb, stradd->sas_assoc_id);
 4250                         if (stcb == NULL) {
 4251                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 4252                                 error = ENOENT;
 4253                                 break;
 4254                         }
 4255                         if (stcb->asoc.peer_supports_strreset == 0) {
 4256                                 /*
 4257                                  * Peer does not support the chunk type.
 4258                                  */
 4259                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 4260                                 error = EOPNOTSUPP;
 4261                                 SCTP_TCB_UNLOCK(stcb);
 4262                                 break;
 4263                         }
 4264                         if (stcb->asoc.stream_reset_outstanding) {
 4265                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
 4266                                 error = EALREADY;
 4267                                 SCTP_TCB_UNLOCK(stcb);
 4268                                 break;
 4269                         }
 4270                         if ((stradd->sas_outstrms == 0) &&
 4271                             (stradd->sas_instrms == 0)) {
 4272                                 error = EINVAL;
 4273                                 goto skip_stuff;
 4274                         }
 4275                         if (stradd->sas_outstrms) {
 4276                                 addstream = 1;
 4277                                 /* We allocate here */
 4278                                 add_o_strmcnt = stradd->sas_outstrms;
 4279                                 if ((((int)add_o_strmcnt) + ((int)stcb->asoc.streamoutcnt)) > 0x0000ffff) {
 4280                                         /* You can't have more than 64k */
 4281                                         error = EINVAL;
 4282                                         goto skip_stuff;
 4283                                 }
 4284                         }
 4285                         if (stradd->sas_instrms) {
 4286                                 int cnt;
 4287 
 4288                                 addstream |= 2;
 4289                                 /*
 4290                                  * We allocate inside
 4291                                  * sctp_send_str_reset_req()
 4292                                  */
 4293                                 add_i_strmcnt = stradd->sas_instrms;
 4294                                 cnt = add_i_strmcnt;
 4295                                 cnt += stcb->asoc.streamincnt;
 4296                                 if (cnt > 0x0000ffff) {
 4297                                         /* You can't have more than 64k */
 4298                                         error = EINVAL;
 4299                                         goto skip_stuff;
 4300                                 }
 4301                                 if (cnt > (int)stcb->asoc.max_inbound_streams) {
 4302                                         /* More than you are allowed */
 4303                                         error = EINVAL;
 4304                                         goto skip_stuff;
 4305                                 }
 4306                         }
 4307                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, 0, addstream, add_o_strmcnt, add_i_strmcnt, 0);
 4308                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
 4309         skip_stuff:
 4310                         SCTP_TCB_UNLOCK(stcb);
 4311                         break;
 4312                 }
 4313         case SCTP_RESET_ASSOC:
 4314                 {
 4315                         uint32_t *value;
 4316 
 4317                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
 4318                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value);
 4319                         if (stcb == NULL) {
 4320                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 4321                                 error = ENOENT;
 4322                                 break;
 4323                         }
 4324                         if (stcb->asoc.peer_supports_strreset == 0) {
 4325                                 /*
 4326                                  * Peer does not support the chunk type.
 4327                                  */
 4328                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 4329                                 error = EOPNOTSUPP;
 4330                                 SCTP_TCB_UNLOCK(stcb);
 4331                                 break;
 4332                         }
 4333                         if (stcb->asoc.stream_reset_outstanding) {
 4334                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
 4335                                 error = EALREADY;
 4336                                 SCTP_TCB_UNLOCK(stcb);
 4337                                 break;
 4338                         }
 4339                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, 1, 0, 0, 0, 0);
 4340                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
 4341                         SCTP_TCB_UNLOCK(stcb);
 4342                         break;
 4343                 }
 4344         case SCTP_CONNECT_X:
 4345                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
 4346                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4347                         error = EINVAL;
 4348                         break;
 4349                 }
 4350                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0);
 4351                 break;
 4352         case SCTP_CONNECT_X_DELAYED:
 4353                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
 4354                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4355                         error = EINVAL;
 4356                         break;
 4357                 }
 4358                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1);
 4359                 break;
 4360         case SCTP_CONNECT_X_COMPLETE:
 4361                 {
 4362                         struct sockaddr *sa;
 4363                         struct sctp_nets *net;
 4364 
 4365                         /* FIXME MT: check correct? */
 4366                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
 4367 
 4368                         /* find tcb */
 4369                         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
 4370                                 SCTP_INP_RLOCK(inp);
 4371                                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
 4372                                 if (stcb) {
 4373                                         SCTP_TCB_LOCK(stcb);
 4374                                         net = sctp_findnet(stcb, sa);
 4375                                 }
 4376                                 SCTP_INP_RUNLOCK(inp);
 4377                         } else {
 4378                                 /*
 4379                                  * We increment here since
 4380                                  * sctp_findassociation_ep_addr() wil do a
 4381                                  * decrement if it finds the stcb as long as
 4382                                  * the locked tcb (last argument) is NOT a
 4383                                  * TCB.. aka NULL.
 4384                                  */
 4385                                 SCTP_INP_INCR_REF(inp);
 4386                                 stcb = sctp_findassociation_ep_addr(&inp, sa, &net, NULL, NULL);
 4387                                 if (stcb == NULL) {
 4388                                         SCTP_INP_DECR_REF(inp);
 4389                                 }
 4390                         }
 4391 
 4392                         if (stcb == NULL) {
 4393                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 4394                                 error = ENOENT;
 4395                                 break;
 4396                         }
 4397                         if (stcb->asoc.delayed_connection == 1) {
 4398                                 stcb->asoc.delayed_connection = 0;
 4399                                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
 4400                                 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb,
 4401                                     stcb->asoc.primary_destination,
 4402                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9);
 4403                                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
 4404                         } else {
 4405                                 /*
 4406                                  * already expired or did not use delayed
 4407                                  * connectx
 4408                                  */
 4409                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
 4410                                 error = EALREADY;
 4411                         }
 4412                         SCTP_TCB_UNLOCK(stcb);
 4413                         break;
 4414                 }
 4415         case SCTP_MAX_BURST:
 4416                 {
 4417                         struct sctp_assoc_value *av;
 4418 
 4419                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 4420                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 4421 
 4422                         if (stcb) {
 4423                                 stcb->asoc.max_burst = av->assoc_value;
 4424                                 SCTP_TCB_UNLOCK(stcb);
 4425                         } else {
 4426                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 4427                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 4428                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
 4429                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
 4430                                         SCTP_INP_WLOCK(inp);
 4431                                         inp->sctp_ep.max_burst = av->assoc_value;
 4432                                         SCTP_INP_WUNLOCK(inp);
 4433                                 }
 4434                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
 4435                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
 4436                                         SCTP_INP_RLOCK(inp);
 4437                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 4438                                                 SCTP_TCB_LOCK(stcb);
 4439                                                 stcb->asoc.max_burst = av->assoc_value;
 4440                                                 SCTP_TCB_UNLOCK(stcb);
 4441                                         }
 4442                                         SCTP_INP_RUNLOCK(inp);
 4443                                 }
 4444                         }
 4445                         break;
 4446                 }
 4447         case SCTP_MAXSEG:
 4448                 {
 4449                         struct sctp_assoc_value *av;
 4450                         int ovh;
 4451 
 4452                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 4453                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 4454 
 4455                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 4456                                 ovh = SCTP_MED_OVERHEAD;
 4457                         } else {
 4458                                 ovh = SCTP_MED_V4_OVERHEAD;
 4459                         }
 4460                         if (stcb) {
 4461                                 if (av->assoc_value) {
 4462                                         stcb->asoc.sctp_frag_point = (av->assoc_value + ovh);
 4463                                 } else {
 4464                                         stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
 4465                                 }
 4466                                 SCTP_TCB_UNLOCK(stcb);
 4467                         } else {
 4468                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 4469                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 4470                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 4471                                         SCTP_INP_WLOCK(inp);
 4472                                         /*
 4473                                          * FIXME MT: I think this is not in
 4474                                          * tune with the API ID
 4475                                          */
 4476                                         if (av->assoc_value) {
 4477                                                 inp->sctp_frag_point = (av->assoc_value + ovh);
 4478                                         } else {
 4479                                                 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
 4480                                         }
 4481                                         SCTP_INP_WUNLOCK(inp);
 4482                                 } else {
 4483                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4484                                         error = EINVAL;
 4485                                 }
 4486                         }
 4487                         break;
 4488                 }
 4489         case SCTP_EVENTS:
 4490                 {
 4491                         struct sctp_event_subscribe *events;
 4492 
 4493                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize);
 4494 
 4495                         SCTP_INP_WLOCK(inp);
 4496                         if (events->sctp_data_io_event) {
 4497                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
 4498                         } else {
 4499                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
 4500                         }
 4501 
 4502                         if (events->sctp_association_event) {
 4503                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
 4504                         } else {
 4505                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
 4506                         }
 4507 
 4508                         if (events->sctp_address_event) {
 4509                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
 4510                         } else {
 4511                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
 4512                         }
 4513 
 4514                         if (events->sctp_send_failure_event) {
 4515                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
 4516                         } else {
 4517                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
 4518                         }
 4519 
 4520                         if (events->sctp_peer_error_event) {
 4521                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR);
 4522                         } else {
 4523                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR);
 4524                         }
 4525 
 4526                         if (events->sctp_shutdown_event) {
 4527                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
 4528                         } else {
 4529                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
 4530                         }
 4531 
 4532                         if (events->sctp_partial_delivery_event) {
 4533                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
 4534                         } else {
 4535                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
 4536                         }
 4537 
 4538                         if (events->sctp_adaptation_layer_event) {
 4539                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
 4540                         } else {
 4541                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
 4542                         }
 4543 
 4544                         if (events->sctp_authentication_event) {
 4545                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT);
 4546                         } else {
 4547                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT);
 4548                         }
 4549 
 4550                         if (events->sctp_sender_dry_event) {
 4551                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT);
 4552                         } else {
 4553                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT);
 4554                         }
 4555 
 4556                         if (events->sctp_stream_reset_event) {
 4557                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
 4558                         } else {
 4559                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
 4560                         }
 4561                         SCTP_INP_WUNLOCK(inp);
 4562 
 4563                         SCTP_INP_RLOCK(inp);
 4564                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 4565                                 SCTP_TCB_LOCK(stcb);
 4566                                 if (events->sctp_association_event) {
 4567                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
 4568                                 } else {
 4569                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
 4570                                 }
 4571                                 if (events->sctp_address_event) {
 4572                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
 4573                                 } else {
 4574                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
 4575                                 }
 4576                                 if (events->sctp_send_failure_event) {
 4577                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
 4578                                 } else {
 4579                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
 4580                                 }
 4581                                 if (events->sctp_peer_error_event) {
 4582                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
 4583                                 } else {
 4584                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
 4585                                 }
 4586                                 if (events->sctp_shutdown_event) {
 4587                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
 4588                                 } else {
 4589                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
 4590                                 }
 4591                                 if (events->sctp_partial_delivery_event) {
 4592                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
 4593                                 } else {
 4594                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
 4595                                 }
 4596                                 if (events->sctp_adaptation_layer_event) {
 4597                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
 4598                                 } else {
 4599                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
 4600                                 }
 4601                                 if (events->sctp_authentication_event) {
 4602                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
 4603                                 } else {
 4604                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
 4605                                 }
 4606                                 if (events->sctp_sender_dry_event) {
 4607                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
 4608                                 } else {
 4609                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
 4610                                 }
 4611                                 if (events->sctp_stream_reset_event) {
 4612                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
 4613                                 } else {
 4614                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
 4615                                 }
 4616                                 SCTP_TCB_UNLOCK(stcb);
 4617                         }
 4618                         /*
 4619                          * Send up the sender dry event only for 1-to-1
 4620                          * style sockets.
 4621                          */
 4622                         if (events->sctp_sender_dry_event) {
 4623                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 4624                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 4625                                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 4626                                         if (stcb) {
 4627                                                 SCTP_TCB_LOCK(stcb);
 4628                                                 if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
 4629                                                     TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
 4630                                                     (stcb->asoc.stream_queue_cnt == 0)) {
 4631                                                         sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
 4632                                                 }
 4633                                                 SCTP_TCB_UNLOCK(stcb);
 4634                                         }
 4635                                 }
 4636                         }
 4637                         SCTP_INP_RUNLOCK(inp);
 4638                         break;
 4639                 }
 4640         case SCTP_ADAPTATION_LAYER:
 4641                 {
 4642                         struct sctp_setadaptation *adap_bits;
 4643 
 4644                         SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize);
 4645                         SCTP_INP_WLOCK(inp);
 4646                         inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind;
 4647                         inp->sctp_ep.adaptation_layer_indicator_provided = 1;
 4648                         SCTP_INP_WUNLOCK(inp);
 4649                         break;
 4650                 }
 4651 #ifdef SCTP_DEBUG
 4652         case SCTP_SET_INITIAL_DBG_SEQ:
 4653                 {
 4654                         uint32_t *vvv;
 4655 
 4656                         SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize);
 4657                         SCTP_INP_WLOCK(inp);
 4658                         inp->sctp_ep.initial_sequence_debug = *vvv;
 4659                         SCTP_INP_WUNLOCK(inp);
 4660                         break;
 4661                 }
 4662 #endif
 4663         case SCTP_DEFAULT_SEND_PARAM:
 4664                 {
 4665                         struct sctp_sndrcvinfo *s_info;
 4666 
 4667                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize);
 4668                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
 4669 
 4670                         if (stcb) {
 4671                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
 4672                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
 4673                                 } else {
 4674                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4675                                         error = EINVAL;
 4676                                 }
 4677                                 SCTP_TCB_UNLOCK(stcb);
 4678                         } else {
 4679                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 4680                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 4681                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC) ||
 4682                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
 4683                                         SCTP_INP_WLOCK(inp);
 4684                                         memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send)));
 4685                                         SCTP_INP_WUNLOCK(inp);
 4686                                 }
 4687                                 if ((s_info->sinfo_assoc_id == SCTP_CURRENT_ASSOC) ||
 4688                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
 4689                                         SCTP_INP_RLOCK(inp);
 4690                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 4691                                                 SCTP_TCB_LOCK(stcb);
 4692                                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
 4693                                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
 4694                                                 }
 4695                                                 SCTP_TCB_UNLOCK(stcb);
 4696                                         }
 4697                                         SCTP_INP_RUNLOCK(inp);
 4698                                 }
 4699                         }
 4700                         break;
 4701                 }
 4702         case SCTP_PEER_ADDR_PARAMS:
 4703                 {
 4704                         struct sctp_paddrparams *paddrp;
 4705                         struct sctp_nets *net;
 4706 
 4707                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
 4708                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
 4709                         net = NULL;
 4710                         if (stcb) {
 4711                                 net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address);
 4712                         } else {
 4713                                 /*
 4714                                  * We increment here since
 4715                                  * sctp_findassociation_ep_addr() wil do a
 4716                                  * decrement if it finds the stcb as long as
 4717                                  * the locked tcb (last argument) is NOT a
 4718                                  * TCB.. aka NULL.
 4719                                  */
 4720                                 SCTP_INP_INCR_REF(inp);
 4721                                 stcb = sctp_findassociation_ep_addr(&inp,
 4722                                     (struct sockaddr *)&paddrp->spp_address,
 4723                                     &net, NULL, NULL);
 4724                                 if (stcb == NULL) {
 4725                                         SCTP_INP_DECR_REF(inp);
 4726                                 }
 4727                         }
 4728                         if (stcb && (net == NULL)) {
 4729                                 struct sockaddr *sa;
 4730 
 4731                                 sa = (struct sockaddr *)&paddrp->spp_address;
 4732 #ifdef INET
 4733                                 if (sa->sa_family == AF_INET) {
 4734 
 4735                                         struct sockaddr_in *sin;
 4736 
 4737                                         sin = (struct sockaddr_in *)sa;
 4738                                         if (sin->sin_addr.s_addr) {
 4739                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4740                                                 SCTP_TCB_UNLOCK(stcb);
 4741                                                 error = EINVAL;
 4742                                                 break;
 4743                                         }
 4744                                 } else
 4745 #endif
 4746 #ifdef INET6
 4747                                 if (sa->sa_family == AF_INET6) {
 4748                                         struct sockaddr_in6 *sin6;
 4749 
 4750                                         sin6 = (struct sockaddr_in6 *)sa;
 4751                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
 4752                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4753                                                 SCTP_TCB_UNLOCK(stcb);
 4754                                                 error = EINVAL;
 4755                                                 break;
 4756                                         }
 4757                                 } else
 4758 #endif
 4759                                 {
 4760                                         error = EAFNOSUPPORT;
 4761                                         SCTP_TCB_UNLOCK(stcb);
 4762                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 4763                                         break;
 4764                                 }
 4765                         }
 4766                         /* sanity checks */
 4767                         if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) {
 4768                                 if (stcb)
 4769                                         SCTP_TCB_UNLOCK(stcb);
 4770                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4771                                 return (EINVAL);
 4772                         }
 4773                         if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) {
 4774                                 if (stcb)
 4775                                         SCTP_TCB_UNLOCK(stcb);
 4776                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 4777                                 return (EINVAL);
 4778                         }
 4779                         if (stcb) {
 4780                                 /************************TCB SPECIFIC SET ******************/
 4781                                 /*
 4782                                  * do we change the timer for HB, we run
 4783                                  * only one?
 4784                                  */
 4785                                 int ovh = 0;
 4786 
 4787                                 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 4788                                         ovh = SCTP_MED_OVERHEAD;
 4789                                 } else {
 4790                                         ovh = SCTP_MED_V4_OVERHEAD;
 4791                                 }
 4792 
 4793                                 /* network sets ? */
 4794                                 if (net) {
 4795                                         /************************NET SPECIFIC SET ******************/
 4796                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
 4797                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED) &&
 4798                                                     !(net->dest_state & SCTP_ADDR_NOHB)) {
 4799                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
 4800                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
 4801                                                 }
 4802                                                 net->dest_state |= SCTP_ADDR_NOHB;
 4803                                         }
 4804                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
 4805                                                 if (paddrp->spp_hbinterval) {
 4806                                                         net->heart_beat_delay = paddrp->spp_hbinterval;
 4807                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
 4808                                                         net->heart_beat_delay = 0;
 4809                                                 }
 4810                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
 4811                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
 4812                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
 4813                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
 4814                                         }
 4815                                         if (paddrp->spp_flags & SPP_HB_DEMAND) {
 4816                                                 /* on demand HB */
 4817                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
 4818                                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
 4819                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
 4820                                         }
 4821                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
 4822                                                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 4823                                                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
 4824                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
 4825                                                 }
 4826                                                 net->dest_state |= SCTP_ADDR_NO_PMTUD;
 4827                                                 net->mtu = paddrp->spp_pathmtu + ovh;
 4828                                                 if (net->mtu < stcb->asoc.smallest_mtu) {
 4829                                                         sctp_pathmtu_adjustment(stcb, net->mtu);
 4830                                                 }
 4831                                         }
 4832                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
 4833                                                 if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 4834                                                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
 4835                                                 }
 4836                                                 net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
 4837                                         }
 4838                                         if (paddrp->spp_pathmaxrxt) {
 4839                                                 if (net->dest_state & SCTP_ADDR_PF) {
 4840                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
 4841                                                                 net->dest_state &= ~SCTP_ADDR_PF;
 4842                                                         }
 4843                                                 } else {
 4844                                                         if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
 4845                                                             (net->error_count > net->pf_threshold)) {
 4846                                                                 net->dest_state |= SCTP_ADDR_PF;
 4847                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
 4848                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
 4849                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
 4850                                                         }
 4851                                                 }
 4852                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
 4853                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
 4854                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
 4855                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
 4856                                                         }
 4857                                                 } else {
 4858                                                         if (net->error_count <= paddrp->spp_pathmaxrxt) {
 4859                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
 4860                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
 4861                                                         }
 4862                                                 }
 4863                                                 net->failure_threshold = paddrp->spp_pathmaxrxt;
 4864                                         }
 4865                                         if (paddrp->spp_flags & SPP_DSCP) {
 4866                                                 net->dscp = paddrp->spp_dscp & 0xfc;
 4867                                                 net->dscp |= 0x01;
 4868                                         }
 4869 #ifdef INET6
 4870                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
 4871                                                 if (net->ro._l_addr.sa.sa_family == AF_INET6) {
 4872                                                         net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
 4873                                                         net->flowlabel |= 0x80000000;
 4874                                                 }
 4875                                         }
 4876 #endif
 4877                                 } else {
 4878                                         /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/
 4879                                         if (paddrp->spp_pathmaxrxt) {
 4880                                                 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt;
 4881                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 4882                                                         if (net->dest_state & SCTP_ADDR_PF) {
 4883                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
 4884                                                                         net->dest_state &= ~SCTP_ADDR_PF;
 4885                                                                 }
 4886                                                         } else {
 4887                                                                 if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
 4888                                                                     (net->error_count > net->pf_threshold)) {
 4889                                                                         net->dest_state |= SCTP_ADDR_PF;
 4890                                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
 4891                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
 4892                                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
 4893                                                                 }
 4894                                                         }
 4895                                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
 4896                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
 4897                                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
 4898                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
 4899                                                                 }
 4900                                                         } else {
 4901                                                                 if (net->error_count <= paddrp->spp_pathmaxrxt) {
 4902                                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
 4903                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
 4904                                                                 }
 4905                                                         }
 4906                                                         net->failure_threshold = paddrp->spp_pathmaxrxt;
 4907                                                 }
 4908                                         }
 4909                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
 4910                                                 if (paddrp->spp_hbinterval) {
 4911                                                         stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval;
 4912                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
 4913                                                         stcb->asoc.heart_beat_delay = 0;
 4914                                                 }
 4915                                                 /* Turn back on the timer */
 4916                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 4917                                                         if (paddrp->spp_hbinterval) {
 4918                                                                 net->heart_beat_delay = paddrp->spp_hbinterval;
 4919                                                         } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
 4920                                                                 net->heart_beat_delay = 0;
 4921                                                         }
 4922                                                         if (net->dest_state & SCTP_ADDR_NOHB) {
 4923                                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
 4924                                                         }
 4925                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
 4926                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
 4927                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
 4928                                                 }
 4929                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
 4930                                         }
 4931                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
 4932                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 4933                                                         if (!(net->dest_state & SCTP_ADDR_NOHB)) {
 4934                                                                 net->dest_state |= SCTP_ADDR_NOHB;
 4935                                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
 4936                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
 4937                                                                 }
 4938                                                         }
 4939                                                 }
 4940                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
 4941                                         }
 4942                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
 4943                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 4944                                                         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 4945                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
 4946                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
 4947                                                         }
 4948                                                         net->dest_state |= SCTP_ADDR_NO_PMTUD;
 4949                                                         net->mtu = paddrp->spp_pathmtu + ovh;
 4950                                                         if (net->mtu < stcb->asoc.smallest_mtu) {
 4951                                                                 sctp_pathmtu_adjustment(stcb, net->mtu);
 4952                                                         }
 4953                                                 }
 4954                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
 4955                                         }
 4956                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
 4957                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 4958                                                         if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 4959                                                                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
 4960                                                         }
 4961                                                         net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
 4962                                                 }
 4963                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
 4964                                         }
 4965                                         if (paddrp->spp_flags & SPP_DSCP) {
 4966                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 4967                                                         net->dscp = paddrp->spp_dscp & 0xfc;
 4968                                                         net->dscp |= 0x01;
 4969                                                 }
 4970                                                 stcb->asoc.default_dscp = paddrp->spp_dscp & 0xfc;
 4971                                                 stcb->asoc.default_dscp |= 0x01;
 4972                                         }
 4973 #ifdef INET6
 4974                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
 4975                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 4976                                                         if (net->ro._l_addr.sa.sa_family == AF_INET6) {
 4977                                                                 net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
 4978                                                                 net->flowlabel |= 0x80000000;
 4979                                                         }
 4980                                                 }
 4981                                                 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
 4982                                                 stcb->asoc.default_flowlabel |= 0x80000000;
 4983                                         }
 4984 #endif
 4985                                 }
 4986                                 SCTP_TCB_UNLOCK(stcb);
 4987                         } else {
 4988                                 /************************NO TCB, SET TO default stuff ******************/
 4989                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 4990                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 4991                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
 4992                                         SCTP_INP_WLOCK(inp);
 4993                                         /*
 4994                                          * For the TOS/FLOWLABEL stuff you
 4995                                          * set it with the options on the
 4996                                          * socket
 4997                                          */
 4998                                         if (paddrp->spp_pathmaxrxt) {
 4999                                                 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt;
 5000                                         }
 5001                                         if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
 5002                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
 5003                                         else if (paddrp->spp_hbinterval) {
 5004                                                 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL)
 5005                                                         paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL;
 5006                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
 5007                                         }
 5008                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
 5009                                                 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
 5010                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
 5011                                                 } else if (paddrp->spp_hbinterval) {
 5012                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
 5013                                                 }
 5014                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
 5015                                         } else if (paddrp->spp_flags & SPP_HB_DISABLE) {
 5016                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
 5017                                         }
 5018                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
 5019                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
 5020                                         } else if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
 5021                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
 5022                                         }
 5023                                         if (paddrp->spp_flags & SPP_DSCP) {
 5024                                                 inp->sctp_ep.default_dscp = paddrp->spp_dscp & 0xfc;
 5025                                                 inp->sctp_ep.default_dscp |= 0x01;
 5026                                         }
 5027 #ifdef INET6
 5028                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
 5029                                                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 5030                                                         inp->sctp_ep.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
 5031                                                         inp->sctp_ep.default_flowlabel |= 0x80000000;
 5032                                                 }
 5033                                         }
 5034 #endif
 5035                                         SCTP_INP_WUNLOCK(inp);
 5036                                 } else {
 5037                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5038                                         error = EINVAL;
 5039                                 }
 5040                         }
 5041                         break;
 5042                 }
 5043         case SCTP_RTOINFO:
 5044                 {
 5045                         struct sctp_rtoinfo *srto;
 5046                         uint32_t new_init, new_min, new_max;
 5047 
 5048                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize);
 5049                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
 5050 
 5051                         if (stcb) {
 5052                                 if (srto->srto_initial)
 5053                                         new_init = srto->srto_initial;
 5054                                 else
 5055                                         new_init = stcb->asoc.initial_rto;
 5056                                 if (srto->srto_max)
 5057                                         new_max = srto->srto_max;
 5058                                 else
 5059                                         new_max = stcb->asoc.maxrto;
 5060                                 if (srto->srto_min)
 5061                                         new_min = srto->srto_min;
 5062                                 else
 5063                                         new_min = stcb->asoc.minrto;
 5064                                 if ((new_min <= new_init) && (new_init <= new_max)) {
 5065                                         stcb->asoc.initial_rto = new_init;
 5066                                         stcb->asoc.maxrto = new_max;
 5067                                         stcb->asoc.minrto = new_min;
 5068                                 } else {
 5069                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5070                                         error = EINVAL;
 5071                                 }
 5072                                 SCTP_TCB_UNLOCK(stcb);
 5073                         } else {
 5074                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 5075                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 5076                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
 5077                                         SCTP_INP_WLOCK(inp);
 5078                                         if (srto->srto_initial)
 5079                                                 new_init = srto->srto_initial;
 5080                                         else
 5081                                                 new_init = inp->sctp_ep.initial_rto;
 5082                                         if (srto->srto_max)
 5083                                                 new_max = srto->srto_max;
 5084                                         else
 5085                                                 new_max = inp->sctp_ep.sctp_maxrto;
 5086                                         if (srto->srto_min)
 5087                                                 new_min = srto->srto_min;
 5088                                         else
 5089                                                 new_min = inp->sctp_ep.sctp_minrto;
 5090                                         if ((new_min <= new_init) && (new_init <= new_max)) {
 5091                                                 inp->sctp_ep.initial_rto = new_init;
 5092                                                 inp->sctp_ep.sctp_maxrto = new_max;
 5093                                                 inp->sctp_ep.sctp_minrto = new_min;
 5094                                         } else {
 5095                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5096                                                 error = EINVAL;
 5097                                         }
 5098                                         SCTP_INP_WUNLOCK(inp);
 5099                                 } else {
 5100                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5101                                         error = EINVAL;
 5102                                 }
 5103                         }
 5104                         break;
 5105                 }
 5106         case SCTP_ASSOCINFO:
 5107                 {
 5108                         struct sctp_assocparams *sasoc;
 5109 
 5110                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize);
 5111                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
 5112                         if (sasoc->sasoc_cookie_life) {
 5113                                 /* boundary check the cookie life */
 5114                                 if (sasoc->sasoc_cookie_life < 1000)
 5115                                         sasoc->sasoc_cookie_life = 1000;
 5116                                 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) {
 5117                                         sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE;
 5118                                 }
 5119                         }
 5120                         if (stcb) {
 5121                                 if (sasoc->sasoc_asocmaxrxt)
 5122                                         stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt;
 5123                                 if (sasoc->sasoc_cookie_life) {
 5124                                         stcb->asoc.cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
 5125                                 }
 5126                                 SCTP_TCB_UNLOCK(stcb);
 5127                         } else {
 5128                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 5129                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 5130                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
 5131                                         SCTP_INP_WLOCK(inp);
 5132                                         if (sasoc->sasoc_asocmaxrxt)
 5133                                                 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt;
 5134                                         if (sasoc->sasoc_cookie_life) {
 5135                                                 inp->sctp_ep.def_cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
 5136                                         }
 5137                                         SCTP_INP_WUNLOCK(inp);
 5138                                 } else {
 5139                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5140                                         error = EINVAL;
 5141                                 }
 5142                         }
 5143                         break;
 5144                 }
 5145         case SCTP_INITMSG:
 5146                 {
 5147                         struct sctp_initmsg *sinit;
 5148 
 5149                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize);
 5150                         SCTP_INP_WLOCK(inp);
 5151                         if (sinit->sinit_num_ostreams)
 5152                                 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams;
 5153 
 5154                         if (sinit->sinit_max_instreams)
 5155                                 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams;
 5156 
 5157                         if (sinit->sinit_max_attempts)
 5158                                 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts;
 5159 
 5160                         if (sinit->sinit_max_init_timeo)
 5161                                 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo;
 5162                         SCTP_INP_WUNLOCK(inp);
 5163                         break;
 5164                 }
 5165         case SCTP_PRIMARY_ADDR:
 5166                 {
 5167                         struct sctp_setprim *spa;
 5168                         struct sctp_nets *net;
 5169 
 5170                         SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize);
 5171                         SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id);
 5172 
 5173                         net = NULL;
 5174                         if (stcb) {
 5175                                 net = sctp_findnet(stcb, (struct sockaddr *)&spa->ssp_addr);
 5176                         } else {
 5177                                 /*
 5178                                  * We increment here since
 5179                                  * sctp_findassociation_ep_addr() wil do a
 5180                                  * decrement if it finds the stcb as long as
 5181                                  * the locked tcb (last argument) is NOT a
 5182                                  * TCB.. aka NULL.
 5183                                  */
 5184                                 SCTP_INP_INCR_REF(inp);
 5185                                 stcb = sctp_findassociation_ep_addr(&inp,
 5186                                     (struct sockaddr *)&spa->ssp_addr,
 5187                                     &net, NULL, NULL);
 5188                                 if (stcb == NULL) {
 5189                                         SCTP_INP_DECR_REF(inp);
 5190                                 }
 5191                         }
 5192 
 5193                         if ((stcb) && (net)) {
 5194                                 if ((net != stcb->asoc.primary_destination) &&
 5195                                     (!(net->dest_state & SCTP_ADDR_UNCONFIRMED))) {
 5196                                         /* Ok we need to set it */
 5197                                         if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) {
 5198                                                 if ((stcb->asoc.alternate) &&
 5199                                                     (!(net->dest_state & SCTP_ADDR_PF)) &&
 5200                                                     (net->dest_state & SCTP_ADDR_REACHABLE)) {
 5201                                                         sctp_free_remote_addr(stcb->asoc.alternate);
 5202                                                         stcb->asoc.alternate = NULL;
 5203                                                 }
 5204                                         }
 5205                                 }
 5206                         } else {
 5207                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5208                                 error = EINVAL;
 5209                         }
 5210                         if (stcb) {
 5211                                 SCTP_TCB_UNLOCK(stcb);
 5212                         }
 5213                         break;
 5214                 }
 5215         case SCTP_SET_DYNAMIC_PRIMARY:
 5216                 {
 5217                         union sctp_sockstore *ss;
 5218 
 5219                         error = priv_check(curthread,
 5220                             PRIV_NETINET_RESERVEDPORT);
 5221                         if (error)
 5222                                 break;
 5223 
 5224                         SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize);
 5225                         /* SUPER USER CHECK? */
 5226                         error = sctp_dynamic_set_primary(&ss->sa, vrf_id);
 5227                         break;
 5228                 }
 5229         case SCTP_SET_PEER_PRIMARY_ADDR:
 5230                 {
 5231                         struct sctp_setpeerprim *sspp;
 5232 
 5233                         SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize);
 5234                         SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id);
 5235                         if (stcb != NULL) {
 5236                                 struct sctp_ifa *ifa;
 5237 
 5238                                 ifa = sctp_find_ifa_by_addr((struct sockaddr *)&sspp->sspp_addr,
 5239                                     stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED);
 5240                                 if (ifa == NULL) {
 5241                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5242                                         error = EINVAL;
 5243                                         goto out_of_it;
 5244                                 }
 5245                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
 5246                                         /*
 5247                                          * Must validate the ifa found is in
 5248                                          * our ep
 5249                                          */
 5250                                         struct sctp_laddr *laddr;
 5251                                         int found = 0;
 5252 
 5253                                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
 5254                                                 if (laddr->ifa == NULL) {
 5255                                                         SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n",
 5256                                                             __FUNCTION__);
 5257                                                         continue;
 5258                                                 }
 5259                                                 if (laddr->ifa == ifa) {
 5260                                                         found = 1;
 5261                                                         break;
 5262                                                 }
 5263                                         }
 5264                                         if (!found) {
 5265                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5266                                                 error = EINVAL;
 5267                                                 goto out_of_it;
 5268                                         }
 5269                                 }
 5270                                 if (sctp_set_primary_ip_address_sa(stcb,
 5271                                     (struct sockaddr *)&sspp->sspp_addr) != 0) {
 5272                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5273                                         error = EINVAL;
 5274                                 }
 5275                 out_of_it:
 5276                                 SCTP_TCB_UNLOCK(stcb);
 5277                         } else {
 5278                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5279                                 error = EINVAL;
 5280                         }
 5281                         break;
 5282                 }
 5283         case SCTP_BINDX_ADD_ADDR:
 5284                 {
 5285                         struct sctp_getaddresses *addrs;
 5286                         struct thread *td;
 5287 
 5288                         td = (struct thread *)p;
 5289                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses,
 5290                             optsize);
 5291 #ifdef INET
 5292                         if (addrs->addr->sa_family == AF_INET) {
 5293                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
 5294                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5295                                         error = EINVAL;
 5296                                         break;
 5297                                 }
 5298                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
 5299                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
 5300                                         break;
 5301                                 }
 5302                         } else
 5303 #endif
 5304 #ifdef INET6
 5305                         if (addrs->addr->sa_family == AF_INET6) {
 5306                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
 5307                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5308                                         error = EINVAL;
 5309                                         break;
 5310                                 }
 5311                                 if (td != NULL && (error = prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
 5312                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
 5313                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
 5314                                         break;
 5315                                 }
 5316                         } else
 5317 #endif
 5318                         {
 5319                                 error = EAFNOSUPPORT;
 5320                                 break;
 5321                         }
 5322                         sctp_bindx_add_address(so, inp, addrs->addr,
 5323                             addrs->sget_assoc_id, vrf_id,
 5324                             &error, p);
 5325                         break;
 5326                 }
 5327         case SCTP_BINDX_REM_ADDR:
 5328                 {
 5329                         struct sctp_getaddresses *addrs;
 5330                         struct thread *td;
 5331 
 5332                         td = (struct thread *)p;
 5333 
 5334                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, optsize);
 5335 #ifdef INET
 5336                         if (addrs->addr->sa_family == AF_INET) {
 5337                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
 5338                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5339                                         error = EINVAL;
 5340                                         break;
 5341                                 }
 5342                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
 5343                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
 5344                                         break;
 5345                                 }
 5346                         } else
 5347 #endif
 5348 #ifdef INET6
 5349                         if (addrs->addr->sa_family == AF_INET6) {
 5350                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
 5351                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5352                                         error = EINVAL;
 5353                                         break;
 5354                                 }
 5355                                 if (td != NULL &&
 5356                                     (error = prison_local_ip6(td->td_ucred,
 5357                                     &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
 5358                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
 5359                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
 5360                                         break;
 5361                                 }
 5362                         } else
 5363 #endif
 5364                         {
 5365                                 error = EAFNOSUPPORT;
 5366                                 break;
 5367                         }
 5368                         sctp_bindx_delete_address(inp, addrs->addr,
 5369                             addrs->sget_assoc_id, vrf_id,
 5370                             &error);
 5371                         break;
 5372                 }
 5373         case SCTP_EVENT:
 5374                 {
 5375                         struct sctp_event *event;
 5376                         uint32_t event_type;
 5377 
 5378                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, optsize);
 5379                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
 5380                         switch (event->se_type) {
 5381                         case SCTP_ASSOC_CHANGE:
 5382                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
 5383                                 break;
 5384                         case SCTP_PEER_ADDR_CHANGE:
 5385                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
 5386                                 break;
 5387                         case SCTP_REMOTE_ERROR:
 5388                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
 5389                                 break;
 5390                         case SCTP_SEND_FAILED:
 5391                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
 5392                                 break;
 5393                         case SCTP_SHUTDOWN_EVENT:
 5394                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
 5395                                 break;
 5396                         case SCTP_ADAPTATION_INDICATION:
 5397                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
 5398                                 break;
 5399                         case SCTP_PARTIAL_DELIVERY_EVENT:
 5400                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
 5401                                 break;
 5402                         case SCTP_AUTHENTICATION_EVENT:
 5403                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
 5404                                 break;
 5405                         case SCTP_STREAM_RESET_EVENT:
 5406                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
 5407                                 break;
 5408                         case SCTP_SENDER_DRY_EVENT:
 5409                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
 5410                                 break;
 5411                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
 5412                                 event_type = 0;
 5413                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
 5414                                 error = ENOTSUP;
 5415                                 break;
 5416                         case SCTP_ASSOC_RESET_EVENT:
 5417                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
 5418                                 break;
 5419                         case SCTP_STREAM_CHANGE_EVENT:
 5420                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
 5421                                 break;
 5422                         case SCTP_SEND_FAILED_EVENT:
 5423                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
 5424                                 break;
 5425                         default:
 5426                                 event_type = 0;
 5427                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5428                                 error = EINVAL;
 5429                                 break;
 5430                         }
 5431                         if (event_type > 0) {
 5432                                 if (stcb) {
 5433                                         if (event->se_on) {
 5434                                                 sctp_stcb_feature_on(inp, stcb, event_type);
 5435                                                 if (event_type == SCTP_PCB_FLAGS_DRYEVNT) {
 5436                                                         if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
 5437                                                             TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
 5438                                                             (stcb->asoc.stream_queue_cnt == 0)) {
 5439                                                                 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
 5440                                                         }
 5441                                                 }
 5442                                         } else {
 5443                                                 sctp_stcb_feature_off(inp, stcb, event_type);
 5444                                         }
 5445                                         SCTP_TCB_UNLOCK(stcb);
 5446                                 } else {
 5447                                         /*
 5448                                          * We don't want to send up a storm
 5449                                          * of events, so return an error for
 5450                                          * sender dry events
 5451                                          */
 5452                                         if ((event_type == SCTP_PCB_FLAGS_DRYEVNT) &&
 5453                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) == 0) &&
 5454                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) == 0) &&
 5455                                             ((event->se_assoc_id == SCTP_ALL_ASSOC) ||
 5456                                             (event->se_assoc_id == SCTP_CURRENT_ASSOC))) {
 5457                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
 5458                                                 error = ENOTSUP;
 5459                                                 break;
 5460                                         }
 5461                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 5462                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 5463                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC) ||
 5464                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
 5465                                                 SCTP_INP_WLOCK(inp);
 5466                                                 if (event->se_on) {
 5467                                                         sctp_feature_on(inp, event_type);
 5468                                                 } else {
 5469                                                         sctp_feature_off(inp, event_type);
 5470                                                 }
 5471                                                 SCTP_INP_WUNLOCK(inp);
 5472                                         }
 5473                                         if ((event->se_assoc_id == SCTP_CURRENT_ASSOC) ||
 5474                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
 5475                                                 SCTP_INP_RLOCK(inp);
 5476                                                 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 5477                                                         SCTP_TCB_LOCK(stcb);
 5478                                                         if (event->se_on) {
 5479                                                                 sctp_stcb_feature_on(inp, stcb, event_type);
 5480                                                         } else {
 5481                                                                 sctp_stcb_feature_off(inp, stcb, event_type);
 5482                                                         }
 5483                                                         SCTP_TCB_UNLOCK(stcb);
 5484                                                 }
 5485                                                 SCTP_INP_RUNLOCK(inp);
 5486                                         }
 5487                                 }
 5488                         }
 5489                         break;
 5490                 }
 5491         case SCTP_RECVRCVINFO:
 5492                 {
 5493                         int *onoff;
 5494 
 5495                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
 5496                         SCTP_INP_WLOCK(inp);
 5497                         if (*onoff != 0) {
 5498                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
 5499                         } else {
 5500                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
 5501                         }
 5502                         SCTP_INP_WUNLOCK(inp);
 5503                         break;
 5504                 }
 5505         case SCTP_RECVNXTINFO:
 5506                 {
 5507                         int *onoff;
 5508 
 5509                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
 5510                         SCTP_INP_WLOCK(inp);
 5511                         if (*onoff != 0) {
 5512                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
 5513                         } else {
 5514                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
 5515                         }
 5516                         SCTP_INP_WUNLOCK(inp);
 5517                         break;
 5518                 }
 5519         case SCTP_DEFAULT_SNDINFO:
 5520                 {
 5521                         struct sctp_sndinfo *info;
 5522                         uint16_t policy;
 5523 
 5524                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, optsize);
 5525                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
 5526 
 5527                         if (stcb) {
 5528                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
 5529                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
 5530                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
 5531                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
 5532                                         stcb->asoc.def_send.sinfo_flags |= policy;
 5533                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
 5534                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
 5535                                 } else {
 5536                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5537                                         error = EINVAL;
 5538                                 }
 5539                                 SCTP_TCB_UNLOCK(stcb);
 5540                         } else {
 5541                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 5542                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 5543                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC) ||
 5544                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
 5545                                         SCTP_INP_WLOCK(inp);
 5546                                         inp->def_send.sinfo_stream = info->snd_sid;
 5547                                         policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
 5548                                         inp->def_send.sinfo_flags = info->snd_flags;
 5549                                         inp->def_send.sinfo_flags |= policy;
 5550                                         inp->def_send.sinfo_ppid = info->snd_ppid;
 5551                                         inp->def_send.sinfo_context = info->snd_context;
 5552                                         SCTP_INP_WUNLOCK(inp);
 5553                                 }
 5554                                 if ((info->snd_assoc_id == SCTP_CURRENT_ASSOC) ||
 5555                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
 5556                                         SCTP_INP_RLOCK(inp);
 5557                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 5558                                                 SCTP_TCB_LOCK(stcb);
 5559                                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
 5560                                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
 5561                                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
 5562                                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
 5563                                                         stcb->asoc.def_send.sinfo_flags |= policy;
 5564                                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
 5565                                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
 5566                                                 }
 5567                                                 SCTP_TCB_UNLOCK(stcb);
 5568                                         }
 5569                                         SCTP_INP_RUNLOCK(inp);
 5570                                 }
 5571                         }
 5572                         break;
 5573                 }
 5574         case SCTP_DEFAULT_PRINFO:
 5575                 {
 5576                         struct sctp_default_prinfo *info;
 5577 
 5578                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, optsize);
 5579                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
 5580 
 5581                         if (PR_SCTP_INVALID_POLICY(info->pr_policy)) {
 5582                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5583                                 error = EINVAL;
 5584                                 break;
 5585                         }
 5586                         if (stcb) {
 5587                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
 5588                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
 5589                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
 5590                                 SCTP_TCB_UNLOCK(stcb);
 5591                         } else {
 5592                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 5593                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 5594                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC) ||
 5595                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
 5596                                         SCTP_INP_WLOCK(inp);
 5597                                         inp->def_send.sinfo_flags &= 0xfff0;
 5598                                         inp->def_send.sinfo_flags |= info->pr_policy;
 5599                                         inp->def_send.sinfo_timetolive = info->pr_value;
 5600                                         SCTP_INP_WUNLOCK(inp);
 5601                                 }
 5602                                 if ((info->pr_assoc_id == SCTP_CURRENT_ASSOC) ||
 5603                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
 5604                                         SCTP_INP_RLOCK(inp);
 5605                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 5606                                                 SCTP_TCB_LOCK(stcb);
 5607                                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
 5608                                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
 5609                                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
 5610                                                 SCTP_TCB_UNLOCK(stcb);
 5611                                         }
 5612                                         SCTP_INP_RUNLOCK(inp);
 5613                                 }
 5614                         }
 5615                         break;
 5616                 }
 5617         case SCTP_PEER_ADDR_THLDS:
 5618                 /* Applies to the specific association */
 5619                 {
 5620                         struct sctp_paddrthlds *thlds;
 5621                         struct sctp_nets *net;
 5622 
 5623                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, optsize);
 5624                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
 5625                         net = NULL;
 5626                         if (stcb) {
 5627                                 net = sctp_findnet(stcb, (struct sockaddr *)&thlds->spt_assoc_id);
 5628                         } else {
 5629                                 /*
 5630                                  * We increment here since
 5631                                  * sctp_findassociation_ep_addr() wil do a
 5632                                  * decrement if it finds the stcb as long as
 5633                                  * the locked tcb (last argument) is NOT a
 5634                                  * TCB.. aka NULL.
 5635                                  */
 5636                                 SCTP_INP_INCR_REF(inp);
 5637                                 stcb = sctp_findassociation_ep_addr(&inp,
 5638                                     (struct sockaddr *)&thlds->spt_assoc_id,
 5639                                     &net, NULL, NULL);
 5640                                 if (stcb == NULL) {
 5641                                         SCTP_INP_DECR_REF(inp);
 5642                                 }
 5643                         }
 5644                         if (stcb && (net == NULL)) {
 5645                                 struct sockaddr *sa;
 5646 
 5647                                 sa = (struct sockaddr *)&thlds->spt_assoc_id;
 5648 #ifdef INET
 5649                                 if (sa->sa_family == AF_INET) {
 5650 
 5651                                         struct sockaddr_in *sin;
 5652 
 5653                                         sin = (struct sockaddr_in *)sa;
 5654                                         if (sin->sin_addr.s_addr) {
 5655                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5656                                                 SCTP_TCB_UNLOCK(stcb);
 5657                                                 error = EINVAL;
 5658                                                 break;
 5659                                         }
 5660                                 } else
 5661 #endif
 5662 #ifdef INET6
 5663                                 if (sa->sa_family == AF_INET6) {
 5664                                         struct sockaddr_in6 *sin6;
 5665 
 5666                                         sin6 = (struct sockaddr_in6 *)sa;
 5667                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
 5668                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5669                                                 SCTP_TCB_UNLOCK(stcb);
 5670                                                 error = EINVAL;
 5671                                                 break;
 5672                                         }
 5673                                 } else
 5674 #endif
 5675                                 {
 5676                                         error = EAFNOSUPPORT;
 5677                                         SCTP_TCB_UNLOCK(stcb);
 5678                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 5679                                         break;
 5680                                 }
 5681                         }
 5682                         if (stcb) {
 5683                                 if (net) {
 5684                                         if (net->dest_state & SCTP_ADDR_PF) {
 5685                                                 if ((net->failure_threshold > thlds->spt_pathmaxrxt) ||
 5686                                                     (net->failure_threshold <= thlds->spt_pathpfthld)) {
 5687                                                         net->dest_state &= ~SCTP_ADDR_PF;
 5688                                                 }
 5689                                         } else {
 5690                                                 if ((net->failure_threshold > thlds->spt_pathpfthld) &&
 5691                                                     (net->failure_threshold <= thlds->spt_pathmaxrxt)) {
 5692                                                         net->dest_state |= SCTP_ADDR_PF;
 5693                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
 5694                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
 5695                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
 5696                                                 }
 5697                                         }
 5698                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
 5699                                                 if (net->failure_threshold > thlds->spt_pathmaxrxt) {
 5700                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
 5701                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
 5702                                                 }
 5703                                         } else {
 5704                                                 if (net->failure_threshold <= thlds->spt_pathmaxrxt) {
 5705                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
 5706                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
 5707                                                 }
 5708                                         }
 5709                                         net->failure_threshold = thlds->spt_pathmaxrxt;
 5710                                         net->pf_threshold = thlds->spt_pathpfthld;
 5711                                 } else {
 5712                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 5713                                                 if (net->dest_state & SCTP_ADDR_PF) {
 5714                                                         if ((net->failure_threshold > thlds->spt_pathmaxrxt) ||
 5715                                                             (net->failure_threshold <= thlds->spt_pathpfthld)) {
 5716                                                                 net->dest_state &= ~SCTP_ADDR_PF;
 5717                                                         }
 5718                                                 } else {
 5719                                                         if ((net->failure_threshold > thlds->spt_pathpfthld) &&
 5720                                                             (net->failure_threshold <= thlds->spt_pathmaxrxt)) {
 5721                                                                 net->dest_state |= SCTP_ADDR_PF;
 5722                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
 5723                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
 5724                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
 5725                                                         }
 5726                                                 }
 5727                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
 5728                                                         if (net->failure_threshold > thlds->spt_pathmaxrxt) {
 5729                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
 5730                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
 5731                                                         }
 5732                                                 } else {
 5733                                                         if (net->failure_threshold <= thlds->spt_pathmaxrxt) {
 5734                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
 5735                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
 5736                                                         }
 5737                                                 }
 5738                                                 net->failure_threshold = thlds->spt_pathmaxrxt;
 5739                                                 net->pf_threshold = thlds->spt_pathpfthld;
 5740                                         }
 5741                                         stcb->asoc.def_net_failure = thlds->spt_pathmaxrxt;
 5742                                         stcb->asoc.def_net_pf_threshold = thlds->spt_pathpfthld;
 5743                                 }
 5744                         } else {
 5745                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 5746                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 5747                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
 5748                                         SCTP_INP_WLOCK(inp);
 5749                                         inp->sctp_ep.def_net_failure = thlds->spt_pathmaxrxt;
 5750                                         inp->sctp_ep.def_net_pf_threshold = thlds->spt_pathpfthld;
 5751                                         SCTP_INP_WUNLOCK(inp);
 5752                                 } else {
 5753                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5754                                         error = EINVAL;
 5755                                 }
 5756                         }
 5757                         break;
 5758                 }
 5759         case SCTP_REMOTE_UDP_ENCAPS_PORT:
 5760                 {
 5761                         struct sctp_udpencaps *encaps;
 5762                         struct sctp_nets *net;
 5763 
 5764                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, optsize);
 5765                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
 5766                         if (stcb) {
 5767                                 net = sctp_findnet(stcb, (struct sockaddr *)&encaps->sue_address);
 5768                         } else {
 5769                                 /*
 5770                                  * We increment here since
 5771                                  * sctp_findassociation_ep_addr() wil do a
 5772                                  * decrement if it finds the stcb as long as
 5773                                  * the locked tcb (last argument) is NOT a
 5774                                  * TCB.. aka NULL.
 5775                                  */
 5776                                 net = NULL;
 5777                                 SCTP_INP_INCR_REF(inp);
 5778                                 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&encaps->sue_address, &net, NULL, NULL);
 5779                                 if (stcb == NULL) {
 5780                                         SCTP_INP_DECR_REF(inp);
 5781                                 }
 5782                         }
 5783                         if (stcb && (net == NULL)) {
 5784                                 struct sockaddr *sa;
 5785 
 5786                                 sa = (struct sockaddr *)&encaps->sue_address;
 5787 #ifdef INET
 5788                                 if (sa->sa_family == AF_INET) {
 5789 
 5790                                         struct sockaddr_in *sin;
 5791 
 5792                                         sin = (struct sockaddr_in *)sa;
 5793                                         if (sin->sin_addr.s_addr) {
 5794                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5795                                                 SCTP_TCB_UNLOCK(stcb);
 5796                                                 error = EINVAL;
 5797                                                 break;
 5798                                         }
 5799                                 } else
 5800 #endif
 5801 #ifdef INET6
 5802                                 if (sa->sa_family == AF_INET6) {
 5803                                         struct sockaddr_in6 *sin6;
 5804 
 5805                                         sin6 = (struct sockaddr_in6 *)sa;
 5806                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
 5807                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5808                                                 SCTP_TCB_UNLOCK(stcb);
 5809                                                 error = EINVAL;
 5810                                                 break;
 5811                                         }
 5812                                 } else
 5813 #endif
 5814                                 {
 5815                                         error = EAFNOSUPPORT;
 5816                                         SCTP_TCB_UNLOCK(stcb);
 5817                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 5818                                         break;
 5819                                 }
 5820                         }
 5821                         if (stcb) {
 5822                                 if (net) {
 5823                                         net->port = encaps->sue_port;
 5824                                 } else {
 5825                                         stcb->asoc.port = encaps->sue_port;
 5826                                 }
 5827                                 SCTP_TCB_UNLOCK(stcb);
 5828                         } else {
 5829                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 5830                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 5831                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
 5832                                         SCTP_INP_WLOCK(inp);
 5833                                         inp->sctp_ep.port = encaps->sue_port;
 5834                                         SCTP_INP_WUNLOCK(inp);
 5835                                 } else {
 5836                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5837                                         error = EINVAL;
 5838                                 }
 5839                         }
 5840                         break;
 5841                 }
 5842         default:
 5843                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
 5844                 error = ENOPROTOOPT;
 5845                 break;
 5846         }                       /* end switch (opt) */
 5847         return (error);
 5848 }
 5849 
 5850 int
 5851 sctp_ctloutput(struct socket *so, struct sockopt *sopt)
 5852 {
 5853         void *optval = NULL;
 5854         size_t optsize = 0;
 5855         void *p;
 5856         int error = 0;
 5857 
 5858         if (sopt->sopt_level != IPPROTO_SCTP) {
 5859                 /* wrong proto level... send back up to IP */
 5860 #ifdef INET6
 5861                 if (INP_CHECK_SOCKAF(so, AF_INET6))
 5862                         error = ip6_ctloutput(so, sopt);
 5863 #endif                          /* INET6 */
 5864 #if defined(INET) && defined(INET6)
 5865                 else
 5866 #endif
 5867 #ifdef INET
 5868                         error = ip_ctloutput(so, sopt);
 5869 #endif
 5870                 return (error);
 5871         }
 5872         optsize = sopt->sopt_valsize;
 5873         if (optsize) {
 5874                 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT);
 5875                 if (optval == NULL) {
 5876                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
 5877                         return (ENOBUFS);
 5878                 }
 5879                 error = sooptcopyin(sopt, optval, optsize, optsize);
 5880                 if (error) {
 5881                         SCTP_FREE(optval, SCTP_M_SOCKOPT);
 5882                         goto out;
 5883                 }
 5884         }
 5885         p = (void *)sopt->sopt_td;
 5886         if (sopt->sopt_dir == SOPT_SET) {
 5887                 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
 5888         } else if (sopt->sopt_dir == SOPT_GET) {
 5889                 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p);
 5890         } else {
 5891                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5892                 error = EINVAL;
 5893         }
 5894         if ((error == 0) && (optval != NULL)) {
 5895                 error = sooptcopyout(sopt, optval, optsize);
 5896                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
 5897         } else if (optval != NULL) {
 5898                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
 5899         }
 5900 out:
 5901         return (error);
 5902 }
 5903 
 5904 #ifdef INET
 5905 static int
 5906 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
 5907 {
 5908         int error = 0;
 5909         int create_lock_on = 0;
 5910         uint32_t vrf_id;
 5911         struct sctp_inpcb *inp;
 5912         struct sctp_tcb *stcb = NULL;
 5913 
 5914         inp = (struct sctp_inpcb *)so->so_pcb;
 5915         if (inp == NULL) {
 5916                 /* I made the same as TCP since we are not setup? */
 5917                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5918                 return (ECONNRESET);
 5919         }
 5920         if (addr == NULL) {
 5921                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5922                 return EINVAL;
 5923         }
 5924         switch (addr->sa_family) {
 5925 #ifdef INET6
 5926         case AF_INET6:
 5927                 {
 5928                         struct sockaddr_in6 *sin6p;
 5929 
 5930                         if (addr->sa_len != sizeof(struct sockaddr_in6)) {
 5931                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5932                                 return (EINVAL);
 5933                         }
 5934                         sin6p = (struct sockaddr_in6 *)addr;
 5935                         if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6p->sin6_addr)) != 0) {
 5936                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 5937                                 return (error);
 5938                         }
 5939                         break;
 5940                 }
 5941 #endif
 5942 #ifdef INET
 5943         case AF_INET:
 5944                 {
 5945                         struct sockaddr_in *sinp;
 5946 
 5947                         if (addr->sa_len != sizeof(struct sockaddr_in)) {
 5948                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5949                                 return (EINVAL);
 5950                         }
 5951                         sinp = (struct sockaddr_in *)addr;
 5952                         if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sinp->sin_addr)) != 0) {
 5953                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 5954                                 return (error);
 5955                         }
 5956                         break;
 5957                 }
 5958 #endif
 5959         default:
 5960                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
 5961                 return (EAFNOSUPPORT);
 5962         }
 5963         SCTP_INP_INCR_REF(inp);
 5964         SCTP_ASOC_CREATE_LOCK(inp);
 5965         create_lock_on = 1;
 5966 
 5967 
 5968         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
 5969             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
 5970                 /* Should I really unlock ? */
 5971                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
 5972                 error = EFAULT;
 5973                 goto out_now;
 5974         }
 5975 #ifdef INET6
 5976         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
 5977             (addr->sa_family == AF_INET6)) {
 5978                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5979                 error = EINVAL;
 5980                 goto out_now;
 5981         }
 5982 #endif
 5983         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
 5984             SCTP_PCB_FLAGS_UNBOUND) {
 5985                 /* Bind a ephemeral port */
 5986                 error = sctp_inpcb_bind(so, NULL, NULL, p);
 5987                 if (error) {
 5988                         goto out_now;
 5989                 }
 5990         }
 5991         /* Now do we connect? */
 5992         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
 5993             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
 5994                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 5995                 error = EINVAL;
 5996                 goto out_now;
 5997         }
 5998         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
 5999             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
 6000                 /* We are already connected AND the TCP model */
 6001                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
 6002                 error = EADDRINUSE;
 6003                 goto out_now;
 6004         }
 6005         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
 6006                 SCTP_INP_RLOCK(inp);
 6007                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
 6008                 SCTP_INP_RUNLOCK(inp);
 6009         } else {
 6010                 /*
 6011                  * We increment here since sctp_findassociation_ep_addr()
 6012                  * will do a decrement if it finds the stcb as long as the
 6013                  * locked tcb (last argument) is NOT a TCB.. aka NULL.
 6014                  */
 6015                 SCTP_INP_INCR_REF(inp);
 6016                 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
 6017                 if (stcb == NULL) {
 6018                         SCTP_INP_DECR_REF(inp);
 6019                 } else {
 6020                         SCTP_TCB_UNLOCK(stcb);
 6021                 }
 6022         }
 6023         if (stcb != NULL) {
 6024                 /* Already have or am bring up an association */
 6025                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
 6026                 error = EALREADY;
 6027                 goto out_now;
 6028         }
 6029         vrf_id = inp->def_vrf_id;
 6030         /* We are GOOD to go */
 6031         stcb = sctp_aloc_assoc(inp, addr, &error, 0, vrf_id, p);
 6032         if (stcb == NULL) {
 6033                 /* Gak! no memory */
 6034                 goto out_now;
 6035         }
 6036         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
 6037                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
 6038                 /* Set the connected flag so we can queue data */
 6039                 soisconnecting(so);
 6040         }
 6041         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
 6042         (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
 6043 
 6044         /* initialize authentication parameters for the assoc */
 6045         sctp_initialize_auth_params(inp, stcb);
 6046 
 6047         sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
 6048         SCTP_TCB_UNLOCK(stcb);
 6049 out_now:
 6050         if (create_lock_on) {
 6051                 SCTP_ASOC_CREATE_UNLOCK(inp);
 6052         }
 6053         SCTP_INP_DECR_REF(inp);
 6054         return (error);
 6055 }
 6056 
 6057 #endif
 6058 
 6059 int
 6060 sctp_listen(struct socket *so, int backlog, struct thread *p)
 6061 {
 6062         /*
 6063          * Note this module depends on the protocol processing being called
 6064          * AFTER any socket level flags and backlog are applied to the
 6065          * socket. The traditional way that the socket flags are applied is
 6066          * AFTER protocol processing. We have made a change to the
 6067          * sys/kern/uipc_socket.c module to reverse this but this MUST be in
 6068          * place if the socket API for SCTP is to work properly.
 6069          */
 6070 
 6071         int error = 0;
 6072         struct sctp_inpcb *inp;
 6073 
 6074         inp = (struct sctp_inpcb *)so->so_pcb;
 6075         if (inp == NULL) {
 6076                 /* I made the same as TCP since we are not setup? */
 6077                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6078                 return (ECONNRESET);
 6079         }
 6080         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) {
 6081                 /* See if we have a listener */
 6082                 struct sctp_inpcb *tinp;
 6083                 union sctp_sockstore store, *sp;
 6084 
 6085                 sp = &store;
 6086                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
 6087                         /* not bound all */
 6088                         struct sctp_laddr *laddr;
 6089 
 6090                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
 6091                                 memcpy(&store, &laddr->ifa->address, sizeof(store));
 6092                                 switch (sp->sa.sa_family) {
 6093 #ifdef INET
 6094                                 case AF_INET:
 6095                                         sp->sin.sin_port = inp->sctp_lport;
 6096                                         break;
 6097 #endif
 6098 #ifdef INET6
 6099                                 case AF_INET6:
 6100                                         sp->sin6.sin6_port = inp->sctp_lport;
 6101                                         break;
 6102 #endif
 6103                                 default:
 6104                                         break;
 6105                                 }
 6106                                 tinp = sctp_pcb_findep(&sp->sa, 0, 0, inp->def_vrf_id);
 6107                                 if (tinp && (tinp != inp) &&
 6108                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
 6109                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 6110                                     (tinp->sctp_socket->so_qlimit)) {
 6111                                         /*
 6112                                          * we have a listener already and
 6113                                          * its not this inp.
 6114                                          */
 6115                                         SCTP_INP_DECR_REF(tinp);
 6116                                         return (EADDRINUSE);
 6117                                 } else if (tinp) {
 6118                                         SCTP_INP_DECR_REF(tinp);
 6119                                 }
 6120                         }
 6121                 } else {
 6122                         /* Setup a local addr bound all */
 6123                         memset(&store, 0, sizeof(store));
 6124                         switch (sp->sa.sa_family) {
 6125 #ifdef INET
 6126                         case AF_INET:
 6127                                 store.sin.sin_port = inp->sctp_lport;
 6128                                 break;
 6129 #endif
 6130 #ifdef INET6
 6131                         case AF_INET6:
 6132                                 sp->sin6.sin6_port = inp->sctp_lport;
 6133                                 break;
 6134 #endif
 6135                         default:
 6136                                 break;
 6137                         }
 6138 #ifdef INET6
 6139                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 6140                                 store.sa.sa_family = AF_INET6;
 6141                                 store.sa.sa_len = sizeof(struct sockaddr_in6);
 6142                         }
 6143 #endif
 6144 #ifdef INET
 6145                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) {
 6146                                 store.sa.sa_family = AF_INET;
 6147                                 store.sa.sa_len = sizeof(struct sockaddr_in);
 6148                         }
 6149 #endif
 6150                         tinp = sctp_pcb_findep(&sp->sa, 0, 0, inp->def_vrf_id);
 6151                         if (tinp && (tinp != inp) &&
 6152                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
 6153                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 6154                             (tinp->sctp_socket->so_qlimit)) {
 6155                                 /*
 6156                                  * we have a listener already and its not
 6157                                  * this inp.
 6158                                  */
 6159                                 SCTP_INP_DECR_REF(tinp);
 6160                                 return (EADDRINUSE);
 6161                         } else if (tinp) {
 6162                                 SCTP_INP_DECR_REF(inp);
 6163                         }
 6164                 }
 6165         }
 6166         SCTP_INP_RLOCK(inp);
 6167 #ifdef SCTP_LOCK_LOGGING
 6168         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) {
 6169                 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK);
 6170         }
 6171 #endif
 6172         SOCK_LOCK(so);
 6173         error = solisten_proto_check(so);
 6174         if (error) {
 6175                 SOCK_UNLOCK(so);
 6176                 SCTP_INP_RUNLOCK(inp);
 6177                 return (error);
 6178         }
 6179         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) &&
 6180             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 6181                 /*
 6182                  * The unlucky case - We are in the tcp pool with this guy.
 6183                  * - Someone else is in the main inp slot. - We must move
 6184                  * this guy (the listener) to the main slot - We must then
 6185                  * move the guy that was listener to the TCP Pool.
 6186                  */
 6187                 if (sctp_swap_inpcb_for_listen(inp)) {
 6188                         goto in_use;
 6189                 }
 6190         }
 6191         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
 6192             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
 6193                 /* We are already connected AND the TCP model */
 6194 in_use:
 6195                 SCTP_INP_RUNLOCK(inp);
 6196                 SOCK_UNLOCK(so);
 6197                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
 6198                 return (EADDRINUSE);
 6199         }
 6200         SCTP_INP_RUNLOCK(inp);
 6201         if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
 6202                 /* We must do a bind. */
 6203                 SOCK_UNLOCK(so);
 6204                 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) {
 6205                         /* bind error, probably perm */
 6206                         return (error);
 6207                 }
 6208                 SOCK_LOCK(so);
 6209         }
 6210         /* It appears for 7.0 and on, we must always call this. */
 6211         solisten_proto(so, backlog);
 6212         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 6213                 /* remove the ACCEPTCONN flag for one-to-many sockets */
 6214                 so->so_options &= ~SO_ACCEPTCONN;
 6215         }
 6216         if (backlog == 0) {
 6217                 /* turning off listen */
 6218                 so->so_options &= ~SO_ACCEPTCONN;
 6219         }
 6220         SOCK_UNLOCK(so);
 6221         return (error);
 6222 }
 6223 
 6224 static int sctp_defered_wakeup_cnt = 0;
 6225 
 6226 int
 6227 sctp_accept(struct socket *so, struct sockaddr **addr)
 6228 {
 6229         struct sctp_tcb *stcb;
 6230         struct sctp_inpcb *inp;
 6231         union sctp_sockstore store;
 6232 
 6233 #ifdef INET6
 6234         int error;
 6235 
 6236 #endif
 6237         inp = (struct sctp_inpcb *)so->so_pcb;
 6238 
 6239         if (inp == NULL) {
 6240                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6241                 return (ECONNRESET);
 6242         }
 6243         SCTP_INP_RLOCK(inp);
 6244         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 6245                 SCTP_INP_RUNLOCK(inp);
 6246                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 6247                 return (EOPNOTSUPP);
 6248         }
 6249         if (so->so_state & SS_ISDISCONNECTED) {
 6250                 SCTP_INP_RUNLOCK(inp);
 6251                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED);
 6252                 return (ECONNABORTED);
 6253         }
 6254         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 6255         if (stcb == NULL) {
 6256                 SCTP_INP_RUNLOCK(inp);
 6257                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6258                 return (ECONNRESET);
 6259         }
 6260         SCTP_TCB_LOCK(stcb);
 6261         SCTP_INP_RUNLOCK(inp);
 6262         store = stcb->asoc.primary_destination->ro._l_addr;
 6263         stcb->asoc.state &= ~SCTP_STATE_IN_ACCEPT_QUEUE;
 6264         SCTP_TCB_UNLOCK(stcb);
 6265         switch (store.sa.sa_family) {
 6266 #ifdef INET
 6267         case AF_INET:
 6268                 {
 6269                         struct sockaddr_in *sin;
 6270 
 6271                         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
 6272                         if (sin == NULL)
 6273                                 return (ENOMEM);
 6274                         sin->sin_family = AF_INET;
 6275                         sin->sin_len = sizeof(*sin);
 6276                         sin->sin_port = store.sin.sin_port;
 6277                         sin->sin_addr = store.sin.sin_addr;
 6278                         *addr = (struct sockaddr *)sin;
 6279                         break;
 6280                 }
 6281 #endif
 6282 #ifdef INET6
 6283         case AF_INET6:
 6284                 {
 6285                         struct sockaddr_in6 *sin6;
 6286 
 6287                         SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
 6288                         if (sin6 == NULL)
 6289                                 return (ENOMEM);
 6290                         sin6->sin6_family = AF_INET6;
 6291                         sin6->sin6_len = sizeof(*sin6);
 6292                         sin6->sin6_port = store.sin6.sin6_port;
 6293                         sin6->sin6_addr = store.sin6.sin6_addr;
 6294                         if ((error = sa6_recoverscope(sin6)) != 0) {
 6295                                 SCTP_FREE_SONAME(sin6);
 6296                                 return (error);
 6297                         }
 6298                         *addr = (struct sockaddr *)sin6;
 6299                         break;
 6300                 }
 6301 #endif
 6302         default:
 6303                 /* TSNH */
 6304                 break;
 6305         }
 6306         /* Wake any delayed sleep action */
 6307         if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) {
 6308                 SCTP_INP_WLOCK(inp);
 6309                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE;
 6310                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) {
 6311                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT;
 6312                         SCTP_INP_WUNLOCK(inp);
 6313                         SOCKBUF_LOCK(&inp->sctp_socket->so_snd);
 6314                         if (sowriteable(inp->sctp_socket)) {
 6315                                 sowwakeup_locked(inp->sctp_socket);
 6316                         } else {
 6317                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd);
 6318                         }
 6319                         SCTP_INP_WLOCK(inp);
 6320                 }
 6321                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) {
 6322                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT;
 6323                         SCTP_INP_WUNLOCK(inp);
 6324                         SOCKBUF_LOCK(&inp->sctp_socket->so_rcv);
 6325                         if (soreadable(inp->sctp_socket)) {
 6326                                 sctp_defered_wakeup_cnt++;
 6327                                 sorwakeup_locked(inp->sctp_socket);
 6328                         } else {
 6329                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv);
 6330                         }
 6331                         SCTP_INP_WLOCK(inp);
 6332                 }
 6333                 SCTP_INP_WUNLOCK(inp);
 6334         }
 6335         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 6336                 SCTP_TCB_LOCK(stcb);
 6337                 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_7);
 6338         }
 6339         return (0);
 6340 }
 6341 
 6342 #ifdef INET
 6343 int
 6344 sctp_ingetaddr(struct socket *so, struct sockaddr **addr)
 6345 {
 6346         struct sockaddr_in *sin;
 6347         uint32_t vrf_id;
 6348         struct sctp_inpcb *inp;
 6349         struct sctp_ifa *sctp_ifa;
 6350 
 6351         /*
 6352          * Do the malloc first in case it blocks.
 6353          */
 6354         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
 6355         if (sin == NULL)
 6356                 return (ENOMEM);
 6357         sin->sin_family = AF_INET;
 6358         sin->sin_len = sizeof(*sin);
 6359         inp = (struct sctp_inpcb *)so->so_pcb;
 6360         if (!inp) {
 6361                 SCTP_FREE_SONAME(sin);
 6362                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6363                 return (ECONNRESET);
 6364         }
 6365         SCTP_INP_RLOCK(inp);
 6366         sin->sin_port = inp->sctp_lport;
 6367         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
 6368                 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
 6369                         struct sctp_tcb *stcb;
 6370                         struct sockaddr_in *sin_a;
 6371                         struct sctp_nets *net;
 6372                         int fnd;
 6373 
 6374                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 6375                         if (stcb == NULL) {
 6376                                 goto notConn;
 6377                         }
 6378                         fnd = 0;
 6379                         sin_a = NULL;
 6380                         SCTP_TCB_LOCK(stcb);
 6381                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 6382                                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
 6383                                 if (sin_a == NULL)
 6384                                         /* this will make coverity happy */
 6385                                         continue;
 6386 
 6387                                 if (sin_a->sin_family == AF_INET) {
 6388                                         fnd = 1;
 6389                                         break;
 6390                                 }
 6391                         }
 6392                         if ((!fnd) || (sin_a == NULL)) {
 6393                                 /* punt */
 6394                                 SCTP_TCB_UNLOCK(stcb);
 6395                                 goto notConn;
 6396                         }
 6397                         vrf_id = inp->def_vrf_id;
 6398                         sctp_ifa = sctp_source_address_selection(inp,
 6399                             stcb,
 6400                             (sctp_route_t *) & net->ro,
 6401                             net, 0, vrf_id);
 6402                         if (sctp_ifa) {
 6403                                 sin->sin_addr = sctp_ifa->address.sin.sin_addr;
 6404                                 sctp_free_ifa(sctp_ifa);
 6405                         }
 6406                         SCTP_TCB_UNLOCK(stcb);
 6407                 } else {
 6408                         /* For the bound all case you get back 0 */
 6409         notConn:
 6410                         sin->sin_addr.s_addr = 0;
 6411                 }
 6412 
 6413         } else {
 6414                 /* Take the first IPv4 address in the list */
 6415                 struct sctp_laddr *laddr;
 6416                 int fnd = 0;
 6417 
 6418                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
 6419                         if (laddr->ifa->address.sa.sa_family == AF_INET) {
 6420                                 struct sockaddr_in *sin_a;
 6421 
 6422                                 sin_a = (struct sockaddr_in *)&laddr->ifa->address.sa;
 6423                                 sin->sin_addr = sin_a->sin_addr;
 6424                                 fnd = 1;
 6425                                 break;
 6426                         }
 6427                 }
 6428                 if (!fnd) {
 6429                         SCTP_FREE_SONAME(sin);
 6430                         SCTP_INP_RUNLOCK(inp);
 6431                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 6432                         return (ENOENT);
 6433                 }
 6434         }
 6435         SCTP_INP_RUNLOCK(inp);
 6436         (*addr) = (struct sockaddr *)sin;
 6437         return (0);
 6438 }
 6439 
 6440 int
 6441 sctp_peeraddr(struct socket *so, struct sockaddr **addr)
 6442 {
 6443         struct sockaddr_in *sin;
 6444         int fnd;
 6445         struct sockaddr_in *sin_a;
 6446         struct sctp_inpcb *inp;
 6447         struct sctp_tcb *stcb;
 6448         struct sctp_nets *net;
 6449 
 6450         /* Do the malloc first in case it blocks. */
 6451         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
 6452         if (sin == NULL)
 6453                 return (ENOMEM);
 6454         sin->sin_family = AF_INET;
 6455         sin->sin_len = sizeof(*sin);
 6456 
 6457         inp = (struct sctp_inpcb *)so->so_pcb;
 6458         if ((inp == NULL) ||
 6459             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) {
 6460                 /* UDP type and listeners will drop out here */
 6461                 SCTP_FREE_SONAME(sin);
 6462                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 6463                 return (ENOTCONN);
 6464         }
 6465         SCTP_INP_RLOCK(inp);
 6466         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 6467         if (stcb) {
 6468                 SCTP_TCB_LOCK(stcb);
 6469         }
 6470         SCTP_INP_RUNLOCK(inp);
 6471         if (stcb == NULL) {
 6472                 SCTP_FREE_SONAME(sin);
 6473                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 6474                 return (ECONNRESET);
 6475         }
 6476         fnd = 0;
 6477         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 6478                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
 6479                 if (sin_a->sin_family == AF_INET) {
 6480                         fnd = 1;
 6481                         sin->sin_port = stcb->rport;
 6482                         sin->sin_addr = sin_a->sin_addr;
 6483                         break;
 6484                 }
 6485         }
 6486         SCTP_TCB_UNLOCK(stcb);
 6487         if (!fnd) {
 6488                 /* No IPv4 address */
 6489                 SCTP_FREE_SONAME(sin);
 6490                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 6491                 return (ENOENT);
 6492         }
 6493         (*addr) = (struct sockaddr *)sin;
 6494         return (0);
 6495 }
 6496 
 6497 struct pr_usrreqs sctp_usrreqs = {
 6498         .pru_abort = sctp_abort,
 6499         .pru_accept = sctp_accept,
 6500         .pru_attach = sctp_attach,
 6501         .pru_bind = sctp_bind,
 6502         .pru_connect = sctp_connect,
 6503         .pru_control = in_control,
 6504         .pru_close = sctp_close,
 6505         .pru_detach = sctp_close,
 6506         .pru_sopoll = sopoll_generic,
 6507         .pru_flush = sctp_flush,
 6508         .pru_disconnect = sctp_disconnect,
 6509         .pru_listen = sctp_listen,
 6510         .pru_peeraddr = sctp_peeraddr,
 6511         .pru_send = sctp_sendm,
 6512         .pru_shutdown = sctp_shutdown,
 6513         .pru_sockaddr = sctp_ingetaddr,
 6514         .pru_sosend = sctp_sosend,
 6515         .pru_soreceive = sctp_soreceive
 6516 };
 6517 
 6518 #endif
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FreeBSD/Linux Kernel Cross Reference sys/netinet/sctp_usrreq.c

FreeBSD/Linux Kernel Cross Reference
sys/netinet/sctp_usrreq.c
